179 listings · 19 states
Hot Springs Open Year-Round in the United States
Hot springs that stay open through winter, when snow soaking is at its best. Check road conditions before you drive.
We list 179 in the United States, across 19 states: the hottest is Hobo Pool (up to 120°F) and the lowest listed adult price is Bagby Hot Springs ($5).
Alameda's Hot Springs Retreat
A 1930s spa-motel in the town of Hot Springs whose suites have private in-room hot mineral baths, kitchens and sun porches. Soaking is for overnight guests only, and the retreat says outdoor soaking is not currently available on site. Same-day bookings are taken by phone rather than online.
Alvord Hot Springs
A privately owned soaking site on the east side of Steens Mountain at the edge of the Alvord Desert, with twin concrete pools fed by spring water that surfaces around 170°F. Caretakers run bunkhouses, campsites and a small general store, and a private road gives guests access to the playa. Overnight guests can soak at any hour; day visitors must call ahead.
Antero Hot Springs Cabins
Three rental cabins on Chalk Creek, each paired with its own hand-built private soaking pool fed by an on-site hot spring. There are no day passes; soaking comes with an overnight stay. The cabins sit between Mount Antero and Mount Princeton, about 15 minutes from Buena Vista.
Aqua Soleil Hotel & Mineral Water Pool
A hotel on Palm Drive with a large mineral water pool at about 88F and two jetted mineral pools at about 102F and 104F. The pools are for registered guests, who may bring up to four day guests. Dogs are allowed for a fee.
Arlington Resort Hotel & Spa (Thermal Bathhouse)
A historic hotel at the north end of Bathhouse Row with a Thermal Bathhouse on the third floor, where park spring water is piped into private baths. The one-hour Thermal Mineral Bath includes a dry sauna and wraps, and packages add massage or facials. The hotel also has cascading outdoor pools for guests from March through October.
Astoria Hot Springs
A nonprofit hot springs park on the Snake River south of Jackson, run by Astoria Park Conservancy, with four flow-through soaking pools at 100-104°F plus a chlorinated children's pool and a cold plunge. Visits are booked in 1 hour 45 minute sessions of up to 70 guests, and it is closed Wednesdays for cleaning.
Avalanche Ranch Cabins & Hot Springs
A cabin ranch in the Crystal River Valley south of Carbondale with three tiered natural pools, the largest fed by a small waterfall in front of a rock grotto. Day visitors book 4-hour slots in advance, while cabin and wagon guests have round-the-clock access. Pools are drained and cleaned every Wednesday.
Avila Hot Springs
A historic hot springs on Avila Beach Drive, two miles from the beach, where oil drillers struck an artesian hot well in 1907. Its 20-by-20-foot mineral soaking pool is about 2 feet deep and kept near 104F, beside a large heated freshwater pool with double slides. Day passes cover both pools, and the site also offers tent and RV camping.
Azure Palm Hot Springs Resort & Day Spa Oasis
A resort and day spa with a 100 by 40 ft mineral pool and four indoor and outdoor hot spas kept at about 99-104F. The Oasis Day Pass covers the pools, sauna, lounging areas and yoga studio from 9am to 7pm. Guests must be 17 or older.
Bagby Hot Springs
Rustic bathhouses with hand-filled cedar log tubs in the Mt. Hood National Forest, reached by a 1.4-mile trail through old growth along the Hot Springs Fork of the Collawash River. Bagby Preservation runs the site under a Forest Service permit and charges $5 per person. Tubs are first come, first served, and weekend waits can be long.
Banbury Hot Springs
A century-old resort on the Snake River near Buhl with a large geothermal swimming pool, adjusted seasonally from about 89F in summer to about 102-104F in winter. Five private hot tubs overlooking the river are booked in 90-minute sessions. The site also has a campground and a dry Queen Cabin.
Bear River Hot Springs
Formerly Riverdale Resort, this family hot springs about five miles north of Preston has four pools. The Hot Tub runs about 105F and the 3.5-ft-deep Peanut Pool 85-95F year-round, while two Hydrotube slides and a Junior Olympic pool open Memorial Day to Labor Day. Lodging includes eight hotel rooms, three cabins, a condo and RV and tent sites.
Belknap Hot Springs Lodge & Gardens
A lodge on the McKenzie River with two hot spring soaking pools, gardens, cabins and tent and RV sites. Walk-in visitors pay $12 for one hour in the lower pool; the upper pool is reserved for overnight guests. Children under 5 are not allowed in the pool area.
Belmont Hot Springs RV Park
An RV park near Garland in Box Elder County built around two natural hot spring lakes, listed at 97°F and 104°F and also known as Udy Hot Springs. A hot springs access pass is sold to non-campers, and scuba diving is offered October through May by reservation. Pets are welcome in the park but not in the springs.
Berkeley Springs State Park
A small state park in the middle of Berkeley Springs where warm springs rise at a constant 74.3°F. The Old Roman Bathhouse and the Main Bathhouse rent private walk-in Roman baths and jetted whirlpool baths filled with spring water heated to 102°F, alongside massage and sauna services. The spring runs are free to wade in year-round, and a spring-filled outdoor pool opens in summer.
Beverly Hot Springs
A Koreatown bathhouse that describes its water as 100% natural mineral hot spring water. Admission covers gender-separated hot pools, cold plunges, steam rooms and dry saunas for up to two hours, with massage and facials sold separately. A co-ed pool is listed as coming soon.
Blackstone Hotsprings
A remodeled motor court in the T or C hot springs district whose TV-themed rooms each have an in-room hot spring tub. Walk-in bathers can book three private outdoor baths or the Wet Room, a large indoor pool with a geothermal steam room and waterfall, in 45-minute sessions. Baths are for ages 12 and up, and pets are not allowed.
Boulder Hot Springs Inn, Spa & Retreat Center
A historic inn and retreat center 3 miles from Boulder in the Elkhorn Mountain foothills, run as an alcohol-, drug- and smoke-free property. Day passes cover an outdoor pool kept at about 96-100F and indoor plunges and steam rooms, with separate women-only and co-ed sides. The indoor hot plunges are continuous-flow without harsh chemicals, while the outdoor pool uses bromine.
Bozeman Hot Springs
A large soaking complex 8 miles west of Bozeman on US 191 with 12 indoor and outdoor pools from about 57F to 106F, plus a dry sauna and steam room. The indoor pools are drained nightly without chlorine; the three main outdoor pools are chlorinated. It closes from Friday sundown to Saturday sundown and does not sell or allow alcohol.
Breitenbush Hot Springs
An off-grid retreat center in the Willamette National Forest east of Detroit, with meadow pools, spiral tubs and a sauna fed by hot springs. Day passes run 9am to 6pm and often sell out weeks ahead; overnight guests get meals and 24-hour soaking. The property is substance-free, fragrance-free and has no cell service.
Broadwater Hot Springs & Fitness
Helena's hot springs pool and fitness center on US 12 west of town, on a site used since 1889. A single-use pass covers five hot pools, two cool contrast pools, a sauna, a steam room and the gym, with The Springs Taproom & Grill serving poolside. The pools are lightly chlorinated as the city requires and drained and cleaned weekly.
Buckstaff Bathhouse
A traditional bathhouse on Bathhouse Row that has offered baths continuously since 1912, with thermal water piped in from the park's springs. The classic package moves guests through a private whirlpool tub, sitz tub, steam cabinet and hot packs, with an optional short massage. Baths are walk-in only, and men and women are served on separate floors.
Burgdorf Hot Springs
A historic off-grid resort in the Payette National Forest, about 30 miles north of McCall on Warren Wagon Road, with three log-sided, gravel-bottomed pools. Day soaks are booked in two-hour blocks, and the rustic cabins have no electricity or plumbing. In winter the road becomes a groomed snowmobile trail, so guests arrive by snowmobile or tracked vehicle.
Caliente Springs Resort
A 55-and-over RV resort on Dillon Road with natural hot mineral pools and spas, including a tub at about 104F, plus a sauna. The source water rises at 115-146F. The pools are for resort guests, and no day pass is published.
Calistoga Motor Lodge and Spa
A retro-styled motor lodge at the north end of Lincoln Avenue, now part of JdV by Hyatt, with outdoor pools and a hot tub filled with mineral water from Calistoga's geothermal springs. MoonAcre Spa on site offers mud baths and massage. Day passes are sold through ResortPass.
Calistoga Spa Hot Springs
A downtown Calistoga resort built around four outdoor pools filled with geothermal mineral water from a well beneath the property, ranging from about 80 to 104°F. The covered, jetted octagonal Jet Pool is adults only. Pools are for room guests and people booking spa treatments, which include traditional volcanic ash mud baths.
Carson Hot Springs
A historic hot springs on the east side of Carson City, run as a resort since the 1880s, with four outdoor pools and hot tubs at 98-104°F and nine private indoor pools. The 121°F mineral water flows through the pools with no chemicals or city water added, and every pool is drained and refilled daily. Admission is sold in 2-hour blocks without reservations, and a restaurant and brewery share the property.
Castle Hot Springs
An adults-only, all-inclusive resort in the desert foothills northwest of Phoenix, reached by a 7-mile dirt road. Three natural-floored spring pools step down from the source at about 104-108°F, 98-102°F and 75-90°F, the last a 9-ft-deep swimming hole. The springs and spa are for registered overnight guests only, and swimwear is required.
Catalina Spa & RV Resort
A gated RV resort with odorless hot mineral pools and hot tubs across five swimming areas at its Lower and Upper Clubhouses. RV sites start at $45 a night. The pools are for registered guests, and an ADA pool lift is available.
Challis Hot Springs
A hot springs unit of Land of the Yankee Fork State Park near Challis, beside the Salmon River, with a 100 x 30 ft warm pool and a smaller pool kept near 105F. Day use is $10 per person, with children 5 and under free. A 68-site state campground is on the same property.
Charles Motel & Hotsprings
A historic downtown motel and bathhouse with individual deco-tiled meditation tubs and a larger indoor group tub, all drained and cleaned between users. Mineral water comes from the property's wells at about 111°F, and cool water is available to adjust it. Walk-ins pay by the hour and motel guests use the meditation tubs free; the rooftop tubs are closed for renovation.
Charlotte Hot Springs & Botanical Gardens
A small family-run hot springs west of Buena Vista that opened to the public in 2024 after decades of planning by the Merrifield family. It has three outdoor pools set among botanical gardens and geothermally heated greenhouses. Current prices and booking rules were not posted online, so call ahead.
Chena Hot Springs Resort
A year-round resort at the end of Chena Hot Springs Road northeast of Fairbanks, built around an outdoor hot springs lake of about 106°F that is open only to guests 18 and over. The Pool House also has an indoor family pool and indoor and outdoor hot tubs, and day passes need no hotel stay. The resort has lodge rooms, cabins, summer camping and the Aurora Ice Museum.
Chico Hot Springs Resort & Day Spa
A historic resort in Paradise Valley whose main lodge opened in 1900, about 23 miles south of Livingston on US 89. Two open-air mineral pools average about 96F (large pool) and 103F (small pool), with no added chemicals. Day passes are sold alongside lodge rooms, cabins, a dining room, saloon and day spa.
Cottonwood Hot Springs Inn & Spa
A rustic inn west of Buena Vista with soaking tubs fed by artesian hot springs, a river cold plunge and a dry sauna. Day soaks are walk-in friendly and swimsuits are required. Lodge rooms and cabins include soaking access.
Crystal Crane Hot Springs
A high-desert resort on Highway 78 east of Burns built around an open-air hot springs pond of about 9,700 square feet that averages 101°F and is about 5 feet deep in the center. Cedar-enclosed private tubs with adjustable natural hot water taps are also available. Lodging ranges from cabins and suites to teepees, a sheepherder's wagon, RV sites and dry camping.
Crystal Hot Springs
A long-running pool complex in Honeyville, opened as Madsen Hot Springs in 1901, that blends a 120-134°F hot spring with a cold spring less than 50 feet away. It has three mineral hot tubs, a soaker/cave pool, a chlorinated lap pool, an Olympic pool and two water slides. Camping is no longer offered and outside food is not allowed.
Dakota Hot Springs
A naturally flowing, unchlorinated geothermal pool west of Penrose that is swimsuit-optional most days and describes itself as family-friendly. Visits are booked online in two 5-hour sessions, and it is closed Mondays for cleaning. Tent sites and camper rentals are available to soakers.
David Walley's Resort
A Holiday Inn Club Vacations resort at the foot of the Sierra Nevada, 1.5 miles from Genoa, on a hot springs site developed in the 1860s. Day visitors pay one fee for the mineral spas (98-104°F), a geothermally heated swimming pool, steam rooms and dry saunas. Lodging ranges from studios to three-bedroom cottages, and the 1862 Restaurant & Saloon is on site.
Death Valley Hot Springs
A Tecopa Hot Springs Road resort with a large outdoor geothermal pool ringed by four smaller hot pools of different sizes and temperatures. Four private pools with their own showers are also offered, and everyone on the property needs a $35 guest pass, valid 9am-10pm. Lodging is in bungalows, with an RV park and tent sites.
Deer Valley Hot Springs Ranch
A cabin and lodge ranch in Chalk Creek Canyon whose pool and hot tubs are filled with hot spring water and treated for cleanliness. The pools are for ranch guests and open 9 am to 9 pm year-round, closing early on Mondays for cleaning. Sport courts and trails are on the property.
Desert Hot Springs Spa Hotel
A mid-century hotel on Palm Drive, operating since 1950, built around a courtyard of natural hot mineral pools. It sells pool day passes for 9am-8pm and runs a cafe, bar and spa on site. The hotel's day-pass page and its FAQ disagree on price and minimum age, so confirm before visiting.
Desert Reef Hot Springs
An adults-only, suits-optional geothermal soaking spot in the high desert near Florence, with overnight stays in vintage Airstreams, tiny homes or van campsites. Swimsuits are required on Friday daytimes, and some hours are reserved for members. It was temporarily closed for day soaks at time of check (Oct 19-Nov 10, 2026).
Downata Hot Springs
A family resort south of Downey built around a 112F spring that gravity-feeds a 1929 flow-through recreation pool and separate unchlorinated hot soaking pools. Summer adds water slides, a hot tub and a water playground. Lodging ranges from yurts and cabins to large houses and a campground.
Dr. Wilkinson's Backyard Resort & Mineral Springs
Calistoga's resort and spa running since 1952 on Lincoln Avenue, with three geothermal mineral pools, one indoor and two outdoor, set at about 85, 95 and 104°F. The 104°F Hot Spring is adults only. Day visitors can buy pool passes, daybeds and cabanas through ResortPass, and the spa still offers its original mud bath, The Works.
Dunton Hot Springs
A restored 19th-century mining town in the San Juan Mountains turned into a small luxury retreat with 14 cabins. Guests share a historic bathhouse and outdoor pools fed by natural hot springs, with daily slots for private bathhouse use. It is open year-round to overnight guests only.
Durfee Hot Springs
A small family-run spring pool on the north edge of Almo, near City of Rocks National Reserve. Durfee descendants reopened the early-1900s pool in 2005; there is a hot tub, a swimming pool and a kiddie pool with continuously flowing, chemical-free water. Hours are limited and seasonal.
El Morocco Inn & Spa
A small Moroccan-themed inn for adults 21 and over, with a natural mineral-water swimming pool and a large covered Jacuzzi-style spa. Day visitors can book a pass that includes two far-infrared saunas, a locker, towel and robe. There is no restaurant, and guests may bring their own food and drinks.
Elkhorn Hot Springs
A remote resort in the Pioneer Mountains of the Beaverhead-Deerlodge National Forest, about 40 miles northwest of Dillon, with two outdoor mineral pools and a Grecian sauna. Lodging includes rustic and modern cabins and lodge rooms, and groomed cross-country ski trails start nearby. After closing during the 2026 Sand Creek Fire it has reopened for pools only, Thursday through Sunday.
Esalen Institute
A retreat center on the Big Sur cliffs whose hot springs baths sit above the Pacific, fed by springs that emerge at about 119F. The baths have four communal stone tubs, individual claw-foot tubs and an upper-level tub with a lift, and they are clothing-optional. They are open only to overnight guests, and Esalen's public night-bathing reservations are currently closed.
Evans Plunge Mineral Springs
A city-owned indoor pool built over natural warm springs in 1890, holding about 87F year-round from springs that flow around 5,000 gallons per minute. It is a family swim center with slides, swing rings and two kids pools, and admission for ages 16 and up adds the hot tubs, sauna and steam room.
Fairmont Hot Springs Resort
A large resort between Butte and Anaconda with 152 rooms, golf, a spa and hot springs pools fed by a 600-ft well. Pools are open only to overnight resort and condo guests and members, not day visitors. Phase 1 of a pool renovation added an adults-only tiered soaking pool, a family soaking pool, a lap pool and a cold plunge; phase 2 is under construction.
Fairmont Sonoma Mission Inn & Spa
A large resort at Boyes Hot Springs, just north of Sonoma, built over thermal mineral springs. The adults-only Fairmont Spa has five geothermal mineral pools and a Roman-style bathhouse, while the family Main Resort Pool is also filled with naturally heated geothermal water and open year-round. Day visitors can book treatments or a spa pass through ResortPass.
Faywood Hot Springs
A rustic, gated geothermal resort between Deming and Silver City with separate clothing-required and clothing-optional public pools, four private pools and a group pool. Everyone needs a confirmed, prepaid reservation, and first-time visitors must arrive by 8 pm for orientation. Lodging includes cabins, RV sites and tent camping.
Feather River Hot Springs
A small, rustic private campground and cabin site on the Feather River off Highway 70 near Twain, with two riverside tubs at 99 to 104F. Soaks are booked by text in two-hour slots, swimsuits are required, and children are not allowed at the springs. The operator has posted that the springs and all lodging are temporarily closed for medical reasons.
Fire Water Lodge
A restored 1920s motor court lodge in the T or C bathhouse district where each guest room has its own private geothermal mineral tub. The lodge says the water reaches the tub at 104-108°F. Baths are for lodgers only.
Fountain of Youth RV Park
An RV park north of Thermopolis built around a large mineral pool fed by the Sacajawea Well, drilled in 1918, which flows about 1.3 million gallons a day. Travel Wyoming lists the water at 100-104°F, and a 2024 report says new owners were restoring the pools and selling all-day passes to non-campers.
Fountain of Youth Spa & RV Resort
An RV resort and villa park near the Salton Sea whose signature Lobster Pot raw mineral spa runs at about 100-104F. There are also three private soaking tubs with adjustable temperatures and separate mineral steam rooms. The pools are included for registered guests.
Franklin Hot Springs
A family-run hot springs on farmland east of Paso Robles, where a 1952 oil survey struck mineral water instead. It has a large spring-fed pool of about 97F, a hot tub of about 100F and a lake for fishing and boating, all on one $10 day pass. The owners say no chemicals are added to the springs, and tent and RV camping is available.
Gila Hot Springs Ranch
A family-run ranch in the hamlet of Gila Hot Springs, 4 miles south of Gila Cliff Dwellings, with apartments, a historic cabin, an RV park and tent sites. The ranch has a natural hot springs jacuzzi, and its lodgings and RV hookups are piped with hot spring water. NM 15 from Silver City is about 2 hours of winding road; rigs over 20 ft should use NM 35.
Givens Hot Springs
A family-run indoor hot spring pool on Highway 78 at the base of the Owyhee Mountains, about an hour from Boise, in operation since 1881. Swimming needs no reservation and is open daily from noon to 9 pm. The grounds include RV and tent camping, a tipi and a picnic park.
Glen Ivy Hot Springs
A long-running adults-only day spa in Temescal Valley with 19 pools and water features, led by 104°F Mineral Baths fed by a geothermal source. Admission covers Club Mud, saunas, steam rooms, a hot and cold plunge circuit and daily classes. Reservations are required and there is no re-entry.
Glenwood Hot Springs Resort
A large downtown resort built around the Grand Pool, which stretches more than two city blocks, plus a 104°F therapy pool. The newer Yampah Mineral Baths add three hot pools between roughly 95 and 104°F and two cold-contrast baths, and that area turns adults-only after 5 pm. Day passes are sold without reservations, and the resort runs two hotels on site.
Gold Fork Hot Springs
A privately run soaking site on Gold Fork Road east of Donnelly, with six rock-formed, flow-through pools and a sandy children's pool. Admission is cash only, there is a two-hour soak limit, and no reservations are taken. Winter hours run Wednesday to Monday, with Thursdays set aside for guests 18 and over.
Golden Haven Hot Springs Spa and Resort
A family-owned spa and lodge on a residential street near downtown Calistoga, using mineral water from a geothermal aquifer beneath the property. Its gated, partly covered pool runs about 85-88°F, with two adjoining hot spas at 98-100°F and 102-104°F. There is no day use; the pool comes with a stay or any spa treatment, including shared couples mud baths.
Goldmyer Hot Springs
A 20-acre wilderness preserve in the Middle Fork Snoqualmie Valley, owned by the nonprofit Northwest Wilderness Programs, where hot water flows from a small cave into three cascading pools beside a creek-fed cold pool. Entry is capped at 20 people a day, by phone permit or cash walk-in, and the springs are swimsuit-optional. Visitors drive a rough forest road and then hike or bike about 4.5 to 5 miles from the Dingford Creek gate.
Green Canyon Hot Springs
A family-run hot springs pool in a canyon near Newdale and Rexburg, fed by a 115°F spring. The venue lists a 96°F big pool, a 105°F hot pool and a 55°F cold pool, with RV and tent camping on site. Summer swim-lesson camps are held here and fill about a year ahead.
Grover Hot Springs State Park
A California state park 4 miles west of Markleeville with a concrete hot mineral pool fed by six springs and a separate cooler swimming pool, run with a lifeguard on duty. The hot pool is kept at 102-104°F, and pool entry is sold separately from the $8 vehicle day-use fee. The park also has a forested campground, picnic area and trails to a waterfall and Burnside Lake.
Harbin Hot Springs
A rustic, clothing-optional retreat center north of Middletown run by the non-profit Heart Consciousness Church, with eight Mainside pools ranging from a very hot enclosed pool to cold plunges, plus a sauna and steam room. Visitors buy a membership and a 3-, 6- or 24-hour pass, and the property bans alcohol, drugs, phones and cameras. Rebuilding after the 2015 Valley Fire continues, with two new Mainside hotels under construction.
Healing Waters Resort & Spa
A family-owned motel resort in Pagosa Springs, run by the same family since 1950, with a large outdoor mineral swimming pool, a hot tub and separate men's and women's indoor baths. Day soaking is walk-in. The pools use untreated mineral water.
Heise Hot Springs
A family resort on the South Fork Snake River east of Ririe with a hot mineral pool kept around 104°F and a summer swimming pool with a 350-ft water slide. The grounds include cabins, RV campgrounds, a golf course and a pizza parlor. The resort was evacuated during the August 2026 Big Rock Fire and has since reopened.
Hobo Pool
A free, town-owned hot pool in Saratoga on the bank of the North Platte River, open around the clock. Carbon County lists the main pool at 101-110°F and the Lobster Pot at one end at about 120°F. Swimsuits are required, and alcohol, tobacco and glass are banned.
Home Hotel Lava Hot Springs
A family-run hotel on Main Street dating to 1918, originally called the Raya Hotel. Most rooms have private baths filled with natural hot springs water. It sits within walking distance of the state-run Hot Pools.
Homestead Crater
A geothermal spring inside a beehive-shaped limestone dome on the Homestead Resort grounds in Midway, entered through a ground-level tunnel. The water is about 90-96°F and roughly 65 feet deep, so life vests are required for everyone except certified divers. Soaks are sold in one-hour slots with about 40 minutes in the water.
Hoosier Hot Springs & Inn
An adults-only 1937 inn in downtown T or C, revitalized in 2026, with four private soaking spaces: three walled outdoor pools and the original indoor bath. Untreated, unheated mineral water flows in at about 104°F and drains back to the Rio Grande, and each pool is drained and cleaned between reservations. Inn guests get a free 1-hour soak per night.
Hope Springs Resort
A small adults-only (21+) motel-style retreat with three pools fed by an on-site hot mineral well: an ambient swimming pool, a 92°F pool and an enclosed 104°F pool. The pools are for overnight guests only. Rooms have no TVs, and the resort asks for quiet voices and no phone calls around the pools.
Hot Lake Springs Resort
A restored 1906 lodge on Hot Lake outside La Grande with nine outdoor mineral pools, including a historic brick pool and a rock pool, plus a 40-45F cold plunge. Day soaks need an online reservation and cost $20 Monday-Thursday or $29 Friday-Sunday. Children 11 and under are not allowed in the soaking area.
Hot Springs Glamp Camp
A small private RV park and glamping compound in the T or C hot springs district with remodeled vintage trailers, a yurt and a dome. Overnight guests can use three outdoor multi-person mineral baths and one indoor single bath at any hour; the county lists water at about 107-109°F. Baths are for guests only.
Hot Springs Resort & Spa
North Carolina's only hot springs resort, on the banks of Spring Creek and the French Broad River in the Appalachian Trail town of Hot Springs. Natural hot mineral water is piped to private outdoor tubs rented by the hour for up to five people, each drained and cleaned after every use. The resort is rebuilding after Hurricane Helene destroyed most of its tubs and lodging in 2024, so fewer tubs and rooms are available.
Hot Sulphur Springs Resort & Spa
A long-running hillside resort in the town of Hot Sulphur Springs with about 19 public mineral pools between 98 and 112°F. Day passes are walk-in only, and some pools are restricted to ages 12 and up. The property also has a motel, private baths, massage and a grill.
Hot Well Dunes Recreation Area
A remote BLM recreation area about 35 miles from Safford where two cement tubs are filled with about 106°F water from an artesian well and solar pump. The tubs fill from roughly an hour after sunrise to an hour before sunset and drain nightly. The site also has about 2,000 acres of off-highway-vehicle dunes and basic campsites.
Hotel Hale
A nine-suite boutique hotel in the 1892 Hale Bathhouse, the oldest building on Bathhouse Row. Every suite has a large soaking tub filled with thermal water piped from the park's springs, so soaking is for overnight guests only. The ground floor holds Eden, a restaurant with a living wall and full bar.
Hunter's Hot Springs Resort
A small resort just north of Lakeview beside Old Perpetual, a geyser that erupts from the hot springs here. It has one outdoor mineral pool kept at about 104°F, open to day visitors Tuesday to Sunday afternoons. Twelve rooms, RV dry sites and tent camping are on site, along with The Geyser Room restaurant and bar.
Indian Hot Springs
A historic spa in Idaho Springs with separate men's and women's geothermal cave baths, a mineral-water swimming pool and private tubs. Lodging, a restaurant and spa services are on site. Prices and cave rules should be confirmed directly, as public listings conflict.
Indian Springs
A bathhouse and cottages, formerly the Langford Tourist Courts, whose two baths built in 1927 from wood, redwood and lava rock have gravel bottoms with natural artesian flow. Walk-in bathers are taken first come, first served. Facts come from the county tourism listing, as the business has no website.
Indian Springs Calistoga
A historic Calistoga resort whose Olympic-size Main Pool, built in 1913, is fed by mineral water from on-site geysers that surfaces around 230°F and is cooled in reservoirs. A smaller Adult Pool sits next door and runs about ten degrees cooler than the Main Pool. Hotel guests use the pools; day visitors need a spa booking plus a pool pass.
Iron Mountain Hot Springs
A modern soaking complex beside the Colorado River with dozens of small mineral pools ranging from about 89 to 112°F. An adults-only (21+) tier adds a sauna area, plunge pools and WorldSprings-style pools, while a family zone serves younger children. Passes are tiered and cheaper when booked online.
Jackson Hot Springs Lodge
A rustic lodge in the Big Hole Valley town of Jackson with one outdoor hot springs pool at 100-106F that the lodge says uses no chemicals. Rooms, sleeper cabins and rental houses come with swim passes, and the pool is also open to the public. The pool, restaurant and lodge are closed Monday through Wednesday.
Jackson WellSprings
A mineral springs retreat on 30 acres along Bear Creek, about 2.5 miles from downtown Ashland, with a 95-foot swimming pool, a hot tub, a sauna, a steam room and private tubs. The spring water arrives at about 103°F, and the venue says it uses no chlorine or bromine. Daytime sessions are family friendly; evening sessions are adults-only and clothing-optional.
Jacumba Hot Springs
A hotel in the high desert town of Jacumba Hot Springs, about an hour east of San Diego, whose mineral spring water flows into its pools with no chemical treatment. Day passes cover the large outdoor Ritual Pool (96-101°F), with a limited-pass Solstice Pool and an indoor Echo Room (99-103°F) for hotel guests. Pool access is for ages 21 and over.
Jemez Hot Springs
Formerly Giggling Springs, this walk-in soaking spot in the village has four outdoor mineral pools kept at 98-105°F beside the Jemez River. Soaks are sold by the hour on a first-come basis, swimsuits are required, and visitors must be 14 or older. The pools use UV light instead of chemicals and are drained and cleaned every night.
Jemez Springs Bath House
A historic bathhouse on the plaza owned and run as a non-profit by the Village of Jemez Springs, with eight oversized private cement tubs and four massage rooms. Tubs fill with 100% spring water, mixed from hot water and water cooled overnight in tanks so bathers can set their own temperature. Tubs are individual, swimsuits aren't needed, and children under 14 are not allowed.
Joyful Journey Hot Springs Spa
A spa retreat near Moffat in the San Luis Valley, built on the historic Mineral Hot Springs site, with three main pools held at 98, 104 and 108°F plus jacuzzis and a cold plunge. Lodging ranges from hotel rooms to yurts, tipis and campsites. Leashed dogs are welcome on the grounds but not in the pool area.
Kachina Mineral Springs Spa
A family-run mineral spa near Safford, operating since 1993, with private indoor soaking tubs reserved for one party at a time and a reservable outdoor mineral pond and hot tub area. Massage and Reiki sessions include time in the tubs. Swimsuits are optional indoors and required outside, where guests must be 12 or older.
Kah-Nee-Ta Hot Springs Resort
A tribally owned resort on the Warm Springs Reservation that reopened in 2024 after a $13 million renovation. Mineral pools run about 92-104F, with kids' pools, a lazy river and a 37F cold plunge, plus hotel rooms, a teepee village and RV sites. Pools are closed Tuesdays and Wednesdays through March 2027.
Keough's Hot Springs
A pool resort south of Bishop, open since 1919, where spring water is cooled by a waterfall into a large swimming pool alongside a smaller hot soaking pool. Day entry is $14 for adults. The property also has RV and tent sites and furnished canvas tent cabins, and Inyo County's visitor site notes that swimsuits are required.
Lava Hot Springs Inn & Spa
A historic inn at the west end of Lava Hot Springs with outdoor mineral pools from 94 to 107F and a 44F cold plunge. Non-guests can buy a $15 all-day pass at the front desk, and overnight stays include pool access and a hot breakfast. Massages, including aquatic Watsu, are offered on site.
Lava Hot Springs World Famous Hot Pools
Five outdoor mineral pools on Main Street in Lava Hot Springs, run by the Lava Hot Springs Foundation, a self-funded Idaho state agency. Water ranges from about 102 to 112F, is not treated with chemicals and flows through to the Portneuf River. The pools are open year-round except Thanksgiving and Christmas Day.
Lido Palms Resort and Spa
A small inn on Tamar Drive with a 103°F outdoor hot tub, a 99°F indoor hot tub and a warm outdoor pool, all filled with mineral water pumped from the ground. Day passes cost $55 for visitors 18 and over and include the sauna, towels and robes. Swimwear is required, and rooms have full kitchens.
Lithia Springs Resort
A hotel on West Jackson Road about 3 miles from downtown Ashland that pipes warm, sulfur-rich spring water to its rooms, many of which have private soaking tubs or mineral showers. The water surfaces at about 90°F and is aerated to release sulfur gas. Soaking is for overnight guests; there is also a seasonal saline pool, a Jacuzzi and a small spa.
Lolo Hot Springs Resort
A historic hot springs on US 12 in the Lolo National Forest, between the town of Lolo and the Idaho border. It has an indoor hot pool at about 103-106F and an outdoor pool at roughly 74-85F, plus a bar, restaurant, cabins and RV and tent sites. On Wednesday and Sunday nights from 9pm the pools are 18+ and clothing optional.
Lost Trail Hot Springs Resort
A family resort at the base of Lost Trail Pass in the upper Bitterroot Valley, on the site of the old Gallogly Hot Springs. A chemical-free 20 x 70 ft pool averages about 95F and is covered by a dome in colder months, alongside a 103-105F hot tub and a dry sauna. Lodges, cabins and an RV park and campground are on site; hours are limited outside July and August.
Maple Grove Hot Springs
A 45-acre off-grid retreat on the Bear River at the north end of Oneida Narrows Reservoir. Six soaking pools, including three circular stone pools and a creek pool, run about 100-107F, fed from source ponds over 160F that are off-limits. Day visitors book 3-hour blocks; the site is alcohol-free, swimwear is required and pools go silent after sundown.
Meadowlark Country House and Resort
An adults-only country inn on Petrified Forest Road outside Calistoga with a mineral-water lap pool, mineral hot tub and Finnish sauna. The inn says its well water is warmed by volcanic activity; the pool is seasonally heated and not heated in winter. The pool area is clothing-optional, and day visitors can call ahead for a day or evening pass.
Medbery Spa & Wellness
A day spa on Front Street in Ballston Spa that draws naturally carbonated mineral water from the Sans Souci spring, whose 690-foot well dates to 1870. Soaks are private and 30 minutes as standard, with a jacuzzi tub for couples. The spa says the spring runs about 50°F, so hot tap water is added to the bath.
Mercey Hot Springs
An off-grid resort in the Little Panoche Valley, 13 miles west of I-5, where salty mineral water emerges at about 112F. Outdoor tubs run 102-106F and are clothing-optional and adults-only, while the heated swimming pool is 85-90F and needs swimsuits. Day use is by reservation from noon to 5pm, and stays range from cabins and Airstreams to RV and tent sites.
Mi Kasa Hot Springs
A small adults-only (21+), clothing-optional hotel with a natural hot springs pool, an indoor jacuzzi at about 103F and an outdoor jacuzzi at about 100F. Day passes and private tub rentals run 9am to 10pm with single entry. Leashed pets are welcome but may not enter the water.
Miracle Hot Springs
A geothermal soaking resort on Highway 30 near Buhl in the Hagerman Valley. Four outdoor pools are kept between 96 and 106F with no chlorine, and private open-roof pools can be booked by the hour. Overnight options include geodesic domes, a park home and RV sites, and reservations are required for all soaking.
Miracle Manor Boutique Hotel & Spa
A nine-room 1950s motel on Miracle Hill with a mineral water pool, a jacuzzi and private hot and cold mineral tubs. Day passes include pool access from 9am to 5pm, a yoga session and a locker, and reservations are required. The property is adults-only (21+) and pet-free.
Miracle Springs Resort & Spa
A hotel and spa on Palm Drive with a courtyard of eight natural hot mineral pools, which Greater Palm Springs tourism describes as 140°F water cooled to 90-104°F. Day passes ($20, 21+) are walk-in only, and visitors should bring their own towel and a lock. The Capri Italian Restaurant serves poolside.
Moccasin Springs Natural Mineral Spa
An adults-only outdoor mineral spa in Hot Springs with two large natural-temperature pools around 88-93F and three hotter pools of heated spring water at 98-105F. Two-hour soak passes are pre-purchased online for a set time and often sell out. A barrel sauna, massage rooms and the Dragonfly Restaurant are on site.
Mount Princeton Hot Springs Resort
A large resort below the Chalk Cliffs between Buena Vista and Salida, with a historic bath house, terraced upper pools, an infinity pool and natural soaking spots along Chalk Creek. Day passes are walk-in, and summer adds twin water slides. An adults-only spa pool area is reserved for lodging guests and spa clients.
Mount View Hotel & Spa
A 1917 art deco hotel on Lincoln Avenue in downtown Calistoga with a day spa. Its mineral whirlpool and hydrotherapy tubs use water from the spa's own geothermal well, which surfaces at about 120°F, alongside a heated pool. Details could not be confirmed on the hotel's own site.
Mountain Village Resort Hot Springs
Three spring-fed soaking tubs in buildings on Valley Creek, about a third of a mile walk from the Mountain Village Lodge in Stanley. The two private tubs book in 90-minute sessions and the shared Osprey tub in one-hour sessions, free for lodge guests. Water usually runs 98-104°F with no chemicals added.
Murrieta Hot Springs Resort
A historic hot springs resort in Murrieta with lodging and more than 20 pools fed by geothermal spring water found on the property, posted at roughly 50°F to 104°F. Most pools use untreated mineral water, while the Blue Lagoon, Oasis, Roman Spa, Vitality Plunge and indoor bathhall are treated. Day passes are sold to families, with separate adults-only areas including a terrace with a panoramic sauna.
Norris Hot Springs
A single 40-by-40-foot pool built of locally milled fir planks laid over artesian springs, about 35 miles west of Bozeman. The pool is drained every night and refills with fresh water; no chemicals are used, and temperatures run below 100F in summer and up to 106F in winter. A cafe, saloon and frequent live music share the site, with a summer campground next door.
Ojo Caliente Mineral Springs Resort & Spa
A historic spring resort below mesa cliffs on the Rio Ojo Caliente, with nine communal mineral pools named for their iron, soda, lithia and arsenic content, running about 80-105°F. Day passes are sold at the door with no reservations, and the springs are for ages 13 and up. The property also has a spa, a restaurant and wine bar, a 1916 hotel, cottages and an RV and tent campground.
Old Town Hot Springs
A non-profit community hot springs and fitness center in downtown Steamboat Springs, fed by the Heart Spring, which flows at about 102-103°F. Alongside several soaking pools and a cold plunge it has water slides, lap swimming, a gym and a climbing wall. Day admission is walk-in.
Orr Hot Springs
A small clothing-optional resort on 27 acres at the headwaters of Big River, about 12 miles west of Ukiah on Orr Springs Road. The bathhouse has private and communal tubs, a swimming pool, sauna, steam room and cold plunge, and guests cook their own meals in a shared kitchen because no food is sold. Day use runs noon to 9pm by reservation, and there is no cell service or WiFi.
Orvis Hot Springs
A clothing-optional hot springs between Ridgway and Ouray with ten indoor and outdoor pools and ponds from about 65 to 112°F, using water that is neither heated nor treated. Outdoor areas and the sauna are clothing-optional for adults, while children must wear suits. Rooms and a small campground offer round-the-clock soaking.
Ouray Hot Springs Pool
A city-run hot springs pool complex at the north end of Ouray with soaking pools from about 95 to 106°F, a lap pool and an activity pool that becomes a cold plunge in winter. Summer adds water slides and a climbing wall, and there is an adults-only soaking section. Entry is walk-in.
Pelican Spa
A quirky, fully pet-friendly motel and bathhouse with private indoor soaking rooms and deep Japanese-style concrete tubs, filled fresh for each session. The geothermal water is pumped straight from the source without heating or treatment and runs about 102-112°F. Tubs are first come, first served, and non-guests can buy hourly sessions or soak cards at the front desk.
Quapaw Baths & Spa
A 1922 Bathhouse Row building reopened as a spa, with public thermal pools under a stained-glass skylight plus private mineral baths. Pool entry is walk-in and first come first served, for ages 14 and up. Swim attire and rubber or plastic slip-on shoes are required.
Quinn's Hot Springs Resort
A resort on the Clark Fork River near Paradise with two lodges, more than 25 cabins, a restaurant and tavern. Its pool complex mixes 118F well water to temperatures from the upper 90s to 106F, with a 55F cold plunge and pools zoned by age, including an adults-only pool. Day visitors must book one of three 4-hour swim sessions online in advance.
Red River Hot Springs
An off-grid lodge in the Nez Perce National Forest near Elk City with a natural hot spring pool that is not chlorinated. It rents lodge rooms, cabins (one with its own outdoor mineral soaking tub) and dry RV and tent sites, and a cafe serves burgers and breakfast burritos on weekends. Day soaks are paid per visit with no re-entry, and nudity is prohibited.
River Oaks Hot Springs Spa
A day spa in Paso Robles that rents geothermal artesian mineral tubs by the hour, either private covered rooms indoors or semi-private open-air tubs outdoors. Soaks cost $30 per person per hour, and the Sip & Soak package adds a wine-tasting flight in an outdoor tub. Massages and facials include a 30-minute indoor soak.
Riverbend Hot Springs
A hot springs inn on the Rio Grande in Truth or Consequences with eight common pools of 95-107°F on a shaded river deck, and seven private pools rented in 50-minute sessions. Both the hourly Property Pass and private soaks are booked in advance, and guests must be 12 or older. The largest common pool, Sierra, has an ADA pool lift.
Riverside Hot Springs Inn & Spa
An adult-only boutique hotel on the Portneuf River in downtown Lava Hot Springs. Three private indoor soaking rooms on the lower level take continuously flowing mineral water, tempered to 102-106F. Soaks are booked in advance and limited to 30 minutes.
Roman Spa Hot Springs Resort
A downtown Calistoga hotel with three soaking pools filled with geothermal water from the resort's own wells: a large outdoor pool at about 92-96°F, an outdoor jetted hot tub at 103°F and an indoor jetted pool at 100°F. The Baths at Roman Spa offers mud baths made with geothermal water, volcanic ash and peat. Pools are soaking-only, with no diving or splash games.
Roosevelt Baths & Spa
A 1935 bathhouse in Saratoga Spa State Park, run with The Gideon Putnam hotel, where guests soak in private tubs of naturally carbonated mineral water. The spa says the water is drawn cold from underground springs and mixed with warm fresh water to a neutral temperature. Baths last 40 minutes alone or 20 minutes before another treatment, by advance reservation, for guests 18 and over.
Roystone Hot Springs
A family-run hot springs RV park near Sweet with an outdoor pool under a vaulted roof and a jetted hot tub, each rented to one group at a time. The pool is about 98°F in winter and cooled in summer, and the hot tub runs about 104°F. The property is alcohol-free outside the Spring House event area.
Salida Hot Springs Aquatic Center
A city-owned indoor hot springs pool complex in Salida, built in 1937 as a WPA project and filled with geothermal water piped from springs near Poncha Springs. It combines lap swimming with hotter soaking pools and is promoted as one of the largest indoor hot springs facilities in the US. Hours change seasonally, so check the city calendar.
Sam's Family Spa Hot Water Resort
A family-run hot-water resort and RV park on Dillon Road east of Desert Hot Springs, with four chlorine-free mineral spas, swimming and wading pools, a dry sauna and two steam rooms. The spas are drained, cleaned and refilled every morning. Day passes cost $25 on weekdays and $30 on weekends, are sold first come, first served, and kids of all ages are welcome.
Sand Dunes Recreation
A family pool complex near Hooper in the San Luis Valley, fed by a 118°F artesian well first struck during 1930s oil drilling. Alongside the main pools it has an adults-only greenhouse soaking area, a restaurant and bar, and campsites and cabins. The whole facility closes on Thursdays for cleaning.
Saratoga Hot Springs Resort
A historic resort in Saratoga with a 70-foot mineral pool at about 96-98°F and small teepee-covered hot pools at about 100-112°F. The pools are for overnight guests and members, though any spa treatment includes day use. On site are a brewery and pub, a restaurant and a golf course.
Scenic Hot Springs
Privately owned, minimally developed hot springs in the Cascades about 10 miles east of Skykomish, reached by a steep 2-mile trail with 1,100 feet of gain. Visits are by advance reservation only, in daylight, and the two natural stone pools are unchlorinated and clothing optional. The two springs that feed them measure about 111-114°F and 118-122°F at the source.
Sea Mountain Nude Resort & Spa
A clothing-optional, adults-only resort for couples and women, with a heated mineral water pool, a whirlpool and a cedar sauna. Day visits run 10:30am to 5pm year-round, and couples passes start at $99. No one under 21 is allowed on the grounds.
Serpentine Hot Springs
Hot springs in Bering Land Bridge National Preserve, piped into an enclosed bathhouse next to a year-round bunkhouse and an unmaintained gravel airstrip. There are no roads, so most visitors fly in by air taxi, and in winter snowmachine trails are staked from Nome and Shishmaref. The site, known in Inupiaq as Iyat, has long cultural and spiritual importance.
Shoshone Village (Shoshone Inn & RV Park)
A small desert village with an inn, RV park and campground around a naturally warm mineral spring swimming pool. Inn guests use the pool free, and it sits beside the RV park and a short wetland trail through endangered pupfish and vole habitat. Shoshone is about a mile from the southeast entrance to Death Valley National Park.
Sierra Grande Lodge & Spa
A downtown hot springs hotel run by Ted Turner Reserves with private mineral baths: three indoor and one outdoor bath under a pergola, with water up to 107°F. Walk-ins are welcome alongside hotel guests, and the spa offers massage, facials and body treatments. Book soaks and spa appointments by phone or in the lobby.
Sierra Hot Springs
A nonprofit hot springs retreat on more than 600 acres outside Sierraville, about 30 minutes north of Truckee. Its four soaking areas run from the 95-96F Phoenix Baths to the 110-112F Temple Dome Hot Pool, which sits under a geodesic dome with two cold plunges, and all soaking areas are clothing optional. Every visit needs an advance reservation and at least one member in the party, and stays are in the Main Lodge, the Globe Hotel or the campground.
Silver Creek Plunge
A family campground in the Boise National Forest about 25 miles north of Crouch, built around a 186,000-gallon geothermal pool that has operated since 1957. Water enters at 100-104F and the full volume turns over about every six hours. Lodging is rustic A-frames and cabins with no linens or showers, plus first-come tent and RV sites.
Sky Valley Resort
An RV resort east of Desert Hot Springs whose sulfur-free hot water supplies 12 pools and spas, including a tub at about 104F. The pools are for resort guests, and no day pass is published. Its sister property, Caliente Springs, is a 55+ resort.
Sleeping Buffalo Hot Springs & Resort
A Hi-Line resort just off US 2, 17 miles east of Malta, that began in the late 1920s as the American Legion Health Resort. A 3,200-ft artesian well feeds a 60 x 80 ft indoor pool (about 92F), a 128 x 60 ft outdoor pool added in 2025 (95-100F), hot tubs and a 48F cold plunge, all non-chlorinated and flow-through. Cabins, suites, an RV park, a steakhouse and a saloon are on site, with Nelson Reservoir across the road.
Solage, Auberge Resorts Collection
A resort on the Silverado Trail whose Spa Solage Bathhouse has five geothermal pools, from a 50-55°F cold plunge and an ambient magnesium pool to a 98°F relaxation pool and two jetted pools at 102-104°F. The signature Mudslide pairs a mud treatment with a private geothermal soak. The spa is 18+; non-guests can buy a Bathhouse Access Pass.
Spa Hot Springs Motel & Tenderfoot Cabins
A motel on Main Street in White Sulphur Springs with three mineral pools: a new outdoor pool at about 103F, an older outdoor pool at 98F and an indoor pool at 105F. All three are drained and cleaned every night and refilled without added chemicals. The motel has 41 rooms and 12 cabins across the street, and guests swim free.
Spellbound Springs
A tiny-home village in Truth or Consequences with themed cottages and wagons, outdoor hot spring baths and wellness services. You must be a guest to use the baths; one cottage, Rosy's Oracle, has its own clawfoot hot spring tub.
State Bath House (Hot Springs State Park)
A free bath house run by Wyoming State Parks in Hot Springs State Park, with an indoor and an outdoor soaking pool kept at about 104°F from springs that emerge at 128°F. The outdoor pool closed on Aug 24, 2026 for about a month while a pool lift, handrails and heated walkways were installed. The park around it has mineral terraces, the Swinging Bridge over the Bighorn River and the state bison herd.
Steamboat Hot Springs Healing Center & Spa
A small nonprofit bathhouse on South Virginia Street in south Reno, on a geothermal site used for bathing since the 1850s. Visitors book private mineral-bath rooms or an outdoor mineral tub with a cold plunge, filled with water pumped straight from the ground, and massage and spa treatments are offered alongside. Children under 12 are not admitted.
Strawberry Park Hot Springs
Rustic stone-lined pools in a forested valley about 7 miles from downtown Steamboat Springs, reached by a partly unpaved road that requires 4WD and winter tires from November through April. Visits are booked in 2-hour slots and paid in cash. Pools are clothing-optional and limited to adults after dark.
Summer Lake Hot Springs
A 145-acre resort on Highway 31 near Paisley with a 1929 wooden bathhouse holding a 15-by-30-foot indoor pool at 97 to 99°F, and outdoor rock pools averaging 104°F. The spring emerges at 113°F along the Slide Mountain fault. Soaking is only for guests staying in the cabins, houses, RV sites or tent field, and reservations are required.
Sycamore Mineral Springs Resort & Spa
A resort near Avila Beach built on sulfur mineral wells struck by oil prospectors in 1886. Its 24 private hillside hot tubs sit on wooden decks under sycamore and oak trees and are rented by the hour, from $25 per person on weekdays. A group lagoon with waterfalls and a mineral swimming pool are also bookable, and every guest room has its own mineral tub.
Symes Hot Springs Hotel & Mineral Baths
A historic 1928 hotel in the town of Hot Springs with 48 rooms, cabins, apartments and RV sites. Outdoor mineral pools run from about 103F to 110F, with a waterfall between two of them and a 20 x 40 ft swimming pool, and the bath wing still has original clawfoot tubs in private stalls. The hotel also rents a jetted tub and steam room by the hour and offers massage.
Tecopa Hot Springs & Campground
An Inyo County park in the Tecopa Valley with two bathhouses, each with separate enclosed pools for men and women, fed by artesian water of about 102F. Bathing is in the nude only, under a county code. A concessionaire took over under a 10-year agreement and sells $15 day soaking passes, plus more than 200 RV and tent sites.
Tenakee Springs Bathhouse
A public bathhouse in the middle of Tenakee Springs, a village on Chichagof Island that grew up around its 106-107°F sulfur mineral spring. A volunteer Bathhouse Committee runs it, and men and women bathe at separate set hours. Entry is by donation, and the town is reached by Alaska Marine Highway ferry or scheduled air service.
TePee Pools
A commercial mineral-water pool complex in Hot Springs State Park with an indoor pool and water slide, an outdoor pool at 94-98°F and hot tubs up to 105°F. It also has a steam room and a cedar dry sauna. The site lists Carson Hot Springs and Jemez Hot Springs as sister properties.
Terrace Lakes Resort
A golf resort in Garden Valley with an outdoor geothermal pool open year-round to day visitors without reservations. The resort also has a restaurant and lounge, motel rooms, cabins, condos and RV spots. Drinks bought on site can be taken to the pool area with a wristband.
The Lava Hotel & Spa
A Main Street hotel in Lava Hot Springs, formerly Aura Soma Lava, with rooms, vacation rental homes and a conference center. The hotel lists an on-site hot springs pool and a massage studio.
The Oasis at Death Valley
A pair of hotels at Furnace Creek in Death Valley National Park, the Inn and the Ranch, each with a spring-fed swimming pool held at about 87F. The Ranch pool is open 8am-11pm to guests of both hotels, and the public can buy pool passes at the Ranch desk. The Inn's historic tiled pool is for Inn guests and sits beside a spa and poolside cafe.
The Omni Homestead Resort & Spa
A large historic resort in Hot Springs whose spa garden centres on the Octagon Pool, fed by two hot springs at 96-97°F, alongside a heated infinity pool, a 103°F hot tub and a Finnish sauna. The Serenity Garden is for ages 18 and up and sells a limited number of day passes to non-guests. The resort also runs the Allegheny Springs water park, fed by its springs, and owns the historic Warm Springs Pools five miles north.
The Spa at Séc-he (Agua Caliente Cultural Plaza)
A 73,000 sq ft spa in downtown Palm Springs on Séc-he, the Agua Caliente Hot Mineral Spring that the Agua Caliente Band of Cahuilla Indians has cared for over generations and still treats as one of its most important cultural resources. The day pass includes a 15-minute private mineral bath in roughly 105°F spring water, plus steam, sauna and a pool deck. It is part of the tribe's Cultural Plaza alongside the Agua Caliente Cultural Museum; guests must be 18 or older.
The Spring Resort & Spa
A small adults-only (18+) inn and day spa on Miracle Hill with three mineral pools: an enclosed soaking pool, a 104°F outdoor pool and a larger swimming pool. Day visitors get two hours in the pools and Finnish sauna with a spa treatment of 50 minutes or more. The resort can reach capacity and turn away day use on weekends and holidays.
The Springs
A geothermal soaking venue on Highway 21 about a mile south of Idaho City, with an 80 by 40 ft main pool, a hot tub and private tubs. All visits are by reservation in 2.5-hour sessions, and several days and evenings are adults-only. Poolside food, beer and wine are served, and the owners run Inn The Pines lodging a third of a mile away.
The Springs Resort
A large riverside resort in downtown Pagosa Springs whose 47 terraced pools draw from the Mother Spring. General admission covers 25 original pools including an adults-only terrace, and a pricier wellness pass adds newer pools, a halotherapy sauna and a mud studio. Overnight guests get round-the-clock soaking.
Trinity Hot Springs
A members-club hot springs resort near Featherville on the South Fork Boise River, formerly known as Paradise Hot Springs. One fenced geothermal pool runs about 95-108°F in summer and 90-95°F in winter, booked in 2-hour slots. At least one person per party needs a $35 annual membership; lodging guests get pool access.
Tuscan Springs Hotel & Spa
A 16-room adults-only (21+) boutique hotel with a large hot mineral pool and two mineral jacuzzis fed by a 350 ft well. Day visitors can use the pools and dry sauna for four hours for $50. Pool use is free with any treatment at the on-site La Bella Spa.
Two Bunch Palms
An adults-only resort on Two Bunch Palms Trail whose grounds center on a mineral-water grotto fed by a local aquifer that the resort says emerges at over 100°F. Day visitors can buy a Mineral Soak Day ($165, 9am-6pm, lunch included) or an evening soak with dinner. Guests must be 18 or older, and pets are not allowed.
UpValley Inn & Hot Springs
A Lincoln Avenue hotel, formerly a Comfort Inn, whose outdoor swimming pool and whirlpool are filled with mineral water from its own geothermal well. A cedar dry sauna and steam room are included with the pool. Non-guests can buy a day pass through ResortPass.
Valley View Hot Springs
Natural ponds and pools on a hillside above the San Luis Valley, run as a nonprofit by the Orient Land Trust. The whole property is clothing-optional and family-friendly, and daily visitor numbers are capped, so reservations by phone are needed. Cabins and campsites are available, and leashed pets are allowed on camping and day-pass reservations for a fee.
Vichy Springs Resort
A historic resort and country inn in the hills east of Ukiah, operating since 1854 and listed as California Historical Landmark #980. Its signature is 14 tubs of naturally carbonated mineral water at about 90F, alongside a 104F hot pool and a seasonal 25-meter swimming pool. Day visitors pay by 2-hour, 3-hour or all-day blocks and can use trails on the 700-acre reserve; bathing suits are required.
Warm Mineral Springs Park
A city-run park in North Port built around a natural spring that the city says averages 85°F year-round and bills as Florida's only natural warm spring. The historic building complex has been closed since hurricane damage, so visitors use a temporary admissions building and a restroom trailer while a $16.7 million rehabilitation that began in July 2026 proceeds. Admission is sold per day, with lower rates for North Port and Sarasota County residents.
Warm Springs Pools (Jefferson Pools)
Two historic wooden bathhouses in Warm Springs built over spring pools that stay at about 98-99°F, owned and run by the Omni Homestead about five miles from the resort. Soaks are 50 minutes and booked on the hour, with set times for families, co-ed adults and single-gender adult soaking. The Gentlemen's pool is about 6 ft deep and the Ladies' about 5 ft.
White Sulphur Springs
A Forest Service bathhouse and public-use cabin on Bertha Bay, on the outer coast of Chichagof Island in the West Chichagof-Yakobi Wilderness, about 65 miles northwest of Sitka. Boaters anchor at Mirror Harbor and walk a fairly level 0.9-mile trail, or skiff in from Porcupine Bay. The cabin sleeps four and is reserved on Recreation.gov.
Wilbur Hot Springs
An off-grid, solar-powered hot springs hotel on Sulphur Creek in western Colusa County, surrounded by a 1,560-acre nature preserve. Untreated mineral water flows continuously through flumes in a Japanese-style Fluminarium at about 100 to 109F, and the bathing area is clothing optional and device free. Confirmed reservations are required for both day use and overnight stays, and only guests 13 and older are admitted.
Wild Horse Hot Springs
A rustic, off-grid soaking site outside the town of Hot Springs with communal outdoor plunges fed by the Mother Dragon artesian well. The plunges are chemical-free and continuously refreshed, and soakers can open hot-water valves to adjust the temperature. Rustic cabins and tipis share a bathhouse; there is no restaurant, so bring food and water.
Yampah Spa & Vapor Caves
A spa built over natural underground steam caves heated by a 125°F geothermal spring, with three rock chambers that run around 110-113°F. Cave time is bundled with spa treatments and must be reserved ahead. Swimsuits are required and visitors must be at least 13.
Yellowstone Hot Springs
A soaking complex on the Yellowstone River at Corwin Springs, eight miles north of the park's North Entrance. Three flow-through mineral pools include a 103-105F hot pool, a 98-100F main pool with alcoves and a 60-65F cold plunge. Cabins and suites are available year-round, RV and tent sites May to October, and the site is alcohol-, tobacco- and pet-free.
Zims Hot Springs
Two outdoor pools a few miles from New Meadows in the Meadows Valley, filled with mineral water from an artesian well and operated by the Nez Perce Tribe. The smaller soaking pool runs about 100-105F and the larger swimming pool about 90-100F. The site also has RV parking, a campground, a light snack bar and arcade games.
Zion Canyon Hot Springs
A WorldSprings resort that opened in 2025 on the historic Pah Tempe (Dixie) hot springs along the Virgin River in La Verkin. It splits into a family side with 14 mineral pools and a 90°F freshwater pool, and a 21+ side with 18 mineral pools, 16 WorldSprings-style pools, saunas, cold plunges and a bar. Standard passes cover up to three hours, with an all-day upgrade.