Star Plunge vs Thermopolis
A side-by-side look at two water parks — rides, prices, amenities, and which one fits your trip.
Which Park Is Right for You?
Quick verdicts based on what each park offers.
Amenities Compared
What each park offers, side by side.
| Feature | Star Plunge | Thermopolis |
|---|---|---|
| Parking |
Only at Star Plunge
- water slides
- lazy river
- kids area
- food court
Only at Thermopolis
- gift shop
Both parks share 1 amenities including Parking.
About Each Park
Star Plunge
Wyoming
Star Plunge in Thermopolis is Wyoming's original water park, and it's got a completely different vibe from your typical commercial splash zone. This place runs on natural hot springs water, which means you're swimming in the same geothermal goodness that made Thermopolis famous in the first place. The main attraction is the giant outdoor pool filled with naturally heated mineral water that stays warm year-round - we're talking 104°F straight from the ground. You'll also find a couple of solid water slides that dump you right into the hot springs pool, plus a separate cooler swimming area for when you need a break from the heat. The park keeps things simple but effective with a lazy river that's perfect for floating, and a decent kids' area with smaller slides and splash features. What really sets Star Plunge apart is that therapeutic hot springs experience. You can actually soak in the same waters that people have been using for healing for over a century. It's especially amazing during Wyoming's brutal winters when you can swim outside in steaming hot water while snow falls around you. The facility isn't huge or flashy, but it's clean and well-maintained with that classic small-town feel. Families love it because the natural mineral water is gentle on skin, and the smaller size means parents can easily keep track of kids. Bring water shoes since the concrete can get hot, and don't expect fancy amenities - this is more about the unique natural experience than resort-style luxury.…
Read the full Star Plunge guide →Thermopolis
Wyoming
Thermopolis Hot Springs State Park is Wyoming's hidden gem that combines natural mineral hot springs with family-friendly water activities. This isn't your typical chlorinated water park - you're soaking in naturally heated mineral water that bubbles up from deep underground at a consistent 104 degrees year-round. The main attraction is the Star Plunge, where you can swim laps in the large indoor pool or relax in the outdoor soaking pools while snow might be falling around you. The contrast is pretty surreal. The indoor pool area has a vintage 1980s vibe that feels authentically retro rather than run-down. Kids love the smaller warm pools where they can actually stand and play comfortably. The outdoor terraced pools are where you'll want to spend most of your time - they're built right into the natural rock formations and offer different temperature zones. Start in the hottest pools up top and work your way down as you acclimate. The whole setup overlooks the Bighorn River, and you can watch rafters float by while you soak. This place works best for families looking for a unique, low-key experience rather than adrenaline junkies wanting massive slides. It's perfect for multi-generational trips since grandparents can relax in the warm water while kids splash around safely. The mineral content is supposed to be therapeutic - locals swear by it for sore muscles and joint pain. Arrive early in summer since it gets busy with tourists, and bring water shoes because the concrete around the pools can get…
Read the full Thermopolis guide →Ready to visit Star Plunge?