8 listings
Most Mineral-Rich Hot Springs in California
Springs whose source water tested at 1,500 mg/L or more of dissolved minerals, based on USGS and state lab samples. For comparison, tap water is usually under 500 mg/L.
We list 8 in California, 2 of them near Niland: the hottest is Wilbur Hot Springs (up to 109°F) and the lowest listed adult price is Bashford's Hot Mineral Spa ($15).
Bashford's Hot Mineral Spa
A seasonal RV park near Niland with six mineral baths, a heated pool and a heated jacuzzi. Its website lists day use at $15 per person from 10am to 4pm and an Oct 15 to May 15 season, but the rates page carries a 2014 date.
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.
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.
Hot Springs Long Term Visitor Area (Holtville)
A BLM long-term visitor area east of Holtville in the Imperial Valley, known for a historic hot spring that BLM describes as still active and popular with locals and winter visitors. Camping here needs an LTVA permit from mid-September to mid-April. BLM lists swimming among its activities but publishes no pool details.
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.
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.
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.
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.