Evans Plunge Mineral Springs - Day-use fee or pay-per-soak in Hot Springs, SD (2026)
A 1890 quartzite bathhouse now housing a massive indoor pool fed by 5,000 gallons per minute of warm mineral water.
Evans Plunge in Hot Springs, South Dakota is a giant indoor warm-water pool inside a 1890 quartzite bathhouse — the country's oldest indoor swim attraction still using its original structure, fed by a constant 5,000-gallon-per-minute mineral spring at 87-90°F. It's a family aquatic complex more than a soaking property: lap lanes, small waterslides, a sauna, and a steam room. The water is naturally warm rather than hot, which is what makes it kid-friendly and a favorite for families touring the Black Hills (Mount Rushmore is 45 minutes north, Wind Cave 20 minutes east).
What to expect
Pay $15 at the front desk and you have access to the main pool (lap-swim depth in places, shallow play areas in others), the small waterslides, sauna, and steam room. Showers and locker rooms in the basement. The historic 1890 stone bathhouse exterior is part of the experience; the inside has been updated for modern aquatic use. Plan ~2 hours for a typical visit. Snack bar on-site.
Temperature
87°-90°F
Pools
3 soaking pools
Best season
Year-round
Reservations
Walk-up friendly
Dog policy
No pets at pools
Family policy
Family windows available
Safety notes
- Waterslides operate on a rotating schedule—confirm hours if visiting with kids.
- Mineral buildup makes tile decks slick; wear water shoes.
Amenities & etiquette
FAQ
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