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Splashland Hot Springs

  • Call for prices
  • 88–96°F
  • 4 hr 24 min from Denver
  • Walk-in OK

A large outdoor geothermal swimming pool about a mile north of Alamosa, open in summer since 1955. Water enters at 102°F and averages around 88-96°F across the pool. It is geared to families, with slides, a diving board and lap lanes.

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✓ Verified November 2026
Outdoor pool deck with shaded picnic tables at Splashland Hot Springs, Alamosa, Colorado
Photo: Splashland
Price
Call for prices
Water
88–96°F
Nearest town
Alamosa
From Denver
4 hr 24 min
Reservations
Walk-in OK

Plan your visit

Hours & season

Hours
  • Mon-Sat open swim until 7pm
  • Lap swim Mon-Fri 6-9am
  • Closed Sundays
  • After-hours rentals 7-10pm by phone
Season
  • Seasonal
  • Summer-only outdoor pool
  • The 2026 season opened May 25

Tickets & booking

Price
  • Summer-only geothermal swimming pool
  • Current prices not published online at time of check
AccessDay pass, walk-ins welcome
Booking
  • No admission booking listed
  • Call for prices
  • Cabanas and tables must be booked at least 48 hours ahead

On site

Pools1
LodgingNo

Not stated by the venue: swimwear, ages, dogs.

Water temperature

Soaking-pool temperatures as published by the venue or land agency; they vary with season and flow.

Mineral profile

Total dissolved minerals

311 mg/L

Lightly mineralized · Sodium–sulfate (sodium sulfate water)

Sodium72 mg/L
Calcium4.1 mg/L
Magnesium0.40 mg/L
Potassium9.9 mg/L
Chloride6.4 mg/L
Sulfate29 mg/L
Silica110 mg/L
pH
8.3
Temp at source
105°F
Fluoride
4.2 mg/L
Boron
0.34 mg/L
Iron
0.02 mg/L

Lab analysis of the source water at a USGS sampling site, sampled 1975 by the USGS and partners (data). Pool water may be cooled, mixed or treated, and spring chemistry is generally stable over decades. We report measurements only; we don't make health claims.

The pools

PoolTemp
Main poolLarge pool, half shallow and up to 10 ft deep at the diving board; three slides and lap lanes88–96°F

As published by the venue. Temperatures shift with the seasons and the weather.

Facilities

  • Changing rooms: yes
  • Lockers: yes
  • Food on site: yes
Bring your own alcoholNot allowed
Glass containersNot allowed
Good to knowPer a 2018 Gazette report: suits required, outside food and drinks allowed, no alcohol, no glass

What's here

  • large 1955 geothermal swimming pool
  • three water slides
  • diving board
  • lap lanes
  • swim lessons
  • concession stand

Getting there

  • From Denver4 hr 24 min232 mi
  • From Alamosa (ALS)12 min5 mi

Typical driving time without traffic or snow.

Elevation7,548 ft
Road
  • Paved road
  • On Highway 17, about 1 mile north of Alamosa

Things to do near Alamosa

park

Alamosa National Wildlife Refuge

Rio Grande wetlands east of town with a wildlife drive, Malm Trail and Bluff Overlook

park

Great Sand Dunes National Park & Preserve

Tallest dunes in North America, northeast of Alamosa via Mosca

town

Alamosa

San Luis Valley hub town with dining and lodging a mile south

Straight-line distances. Campground and trailhead data © OpenStreetMap contributors.

Nearby springs

Sand Dunes Recreation: 20 mi · Joyful Journey Hot Springs Spa: 47 mi · Valley View Hot Springs: 49 mi

Sources (7)

· checked November 2026

Prices, hours and rules are checked against the official site and land-agency pages. Spot something out of date? Let us know.

  1. alamosa.org: Splashland hot springs
  2. cohotspringsloop.com: Splashland hot springs swimming pool
  3. Official site: home
  4. Official site: Prices
  5. gazette.com
  6. fws.gov: Alamosa
  7. nps.gov: Index