Thermopolis, WY
State Bath House (Hot Springs State Park)
Free public bath house inside Hot Springs State Park, fed by the world's largest mineral hot spring; indoor and outdoor pools cooled to a therapeutic 104°F, set among…
Bighorn Basin · Thermopolis, WY
Fountain of Youth RV Park
Day pass from $45day-use admission
1soak styles
Thermopolislocation
Bighorn Basinregion
About these waters
RV park built around the Sacajawea Well, which flows 1.3+ million gallons of 128°F mineral water daily into one of the largest all-natural hot mineral pools in the US, backed by red-rock vistas.
Amenities
✓Large mineral hot pool
✓Hot tubs
✓Full-hookup RV sites
✓Showers
✓Pet friendly
Good to know
- Listing researched October 2026 — prices and hours change, always confirm with the spring before visiting.
- Hydrate between soaks and limit hot soaks to 15–20 minutes — mineral water dehydrates fast.
- Wild springs run on the honor system: pack out everything, leave the pool cleaner than you found it.
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Fountain of Youth RV Park: FAQs
Do I need to book Fountain of Youth RV Park in advance?
For day-use admission, popular resorts sell out on weekends — if the official site offers reservations, book ahead. Weekday visits are usually easier as walk-ins.
Are kids welcome at Fountain of Youth RV Park?
Many developed springs welcome families, but age rules, family hours, and adults-only pools vary by property. Check the official site for the current policy before visiting with children.
How long should I soak at Fountain of Youth RV Park?
Start with 15–20 minutes, then cool off and hydrate before going back in. Hot mineral water dehydrates you faster than you expect — drink water between soaks and don't push through dizziness.
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