Star Plunge
- Call for prices
- 2 hr 35 min from Casper
A family pool complex in Hot Springs State Park with indoor and outdoor mineral pools, water slides and a vapor cave, closed since Jan 14, 2025 after its concession agreement expired. On Jul 31, 2026 Wyoming State Parks announced a tentative settlement that would let a new long-term concessionaire reopen it, but no date has been set.
Closed since Jan 14, 2025 after its concession expired. A tentative settlement (Jul 31, 2026) clears a new operator; no reopening date set.
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✓ Verified November 2026- Price
- Call for prices
- Nearest town
- Thermopolis
- From Casper
- 2 hr 35 min
- Reservations
- Check venue
Plan your visit
Tickets & booking
| Price |
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On site
| Lodging | No |
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Not stated by the venue: access, swimwear, ages, dogs.
Water temperature
This venue doesn't publish pool temperatures.
What's here
- indoor and outdoor pools fed by the Big Spring
- water slides
- vapor cave
- sun decks
- game room
Getting there
- From Casper2 hr 35 min132 mi
- From Riverton (RIW)1 hr 17 min61 mi
Typical driving time without traffic or snow.
| Elevation | 4,345 ft |
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| Road |
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Things to do near Thermopolis
Hot Springs State Park terraces and Swinging Bridge
Mineral terraces on the Bighorn River, a suspension footbridge, 6+ miles of trails and the state bison herd
Legend Rock State Petroglyph Site
Petroglyph site run by Wyoming State Parks northwest of Thermopolis
Boysen State Park
Reservoir park at the south end of Wind River Canyon; boating, fishing and camping
Campgrounds
Straight-line distances. Campground and trailhead data © OpenStreetMap contributors.
Nearby springs
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.
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.
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.
State Bath House (Hot Springs State Park): 0 mi · TePee Pools: 0 mi · Fountain of Youth RV Park: 2 mi
Sources (8)
· 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.
- Official site: 2213 wyoming state parks announces tentative agreement for star plunge operations
- Official site: 2100 wyoming state parks announces temporary closure of the star plunge at hot springs state park
- cowboystatedaily.com: Ecstatic airbnb owner among those hailing 1 8m deal ending star plunge fight
- travelwyoming.com: 5 amazing wyoming hot springs
- travelwyoming.com: Why thermopolis needs to be on your wyoming bucket list
- Official site: Hot springs
- Official site: Legend rock
- Official site: Boysen