

Thermopolis vs The Reef Indoor Water Park, Billings
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 | Thermopolis | The Reef Indoor Water Park, Billings |
|---|---|---|
| Parking |
Only at Thermopolis
- picnic areas
Only at The Reef Indoor Water Park, Billings
- water slides
- kids area
- basketball goals
- food court
- birthday party packages
Both parks share 1 amenities including Parking.
About Each Park
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 →The Reef Indoor Water Park, Billings
Montana
The Reef Indoor Water Park brings tropical vibes to Montana's high plains, making it Billings' go-to spot for water fun no matter what the weather's doing outside. This isn't a massive resort-style complex, but it packs plenty of action into its indoor space with slides that range from mild to wild. The main pool area stays comfortably warm year-round, which feels amazing when there's snow outside your hotel window. You'll find a good mix of attractions here. The water slides are the main draw, with options that work for both younger kids and teens looking for a thrill. The basketball hoops in the pool are a hit with families - expect some competitive games to break out. The tip bucket is classic water park fun that never gets old, especially for kids who love the suspense of waiting for that big splash. What makes The Reef work well is its size. It's big enough to have fun for several hours but small enough that parents don't lose track of their kids. The indoor setting means you can visit in January or July and have the same experience, which is pretty valuable in Montana's climate. If you're traveling with little ones, they'll have plenty to do in the shallower areas. Older kids and adults can take advantage of the more adventurous slides. The facility does a good job maintaining comfortable temperatures and water quality. For the best experience, try to visit on weekday mornings when it's less crowded. You'll have shorter…
Read the full The Reef Indoor Water Park, Billings guide →
Ready to visit Thermopolis?
