A Visitor’s Guide to Hot Springs State Park in Thermopolis, WY
Plan a trip to Hot Springs State Park and you get a free soak, a colorful mineral terrace, and a walk over a swinging bridge. The park sits in Thermopolis, WY, a small town built around some of the largest mineral hot springs in the world. This guide covers what you can do, when to go, and how to stay safe.
What Makes This Park Special in Thermopolis, WY
The park sits at the edge of town. You can park, walk a few minutes, and stand next to steaming water. Thermopolis rests in the Bighorn Basin, and the springs here have flowed for thousands of years. Native tribes used the water long before settlers arrived. Today the state runs the park, and the main attractions stay open to everyone.
The water leaves the ground at about 135 degrees. It carries a lot of minerals, and those minerals build the colorful terraces you see by the river. If you want some background on the town, click here to read more.
Start With the Free State Bath House
The State Bath House makes the best first stop. The state offers every visitor a free 20-minute soak. The indoor and outdoor pools stay at about 104 degrees, which feels warm and relaxing.
Here is what you need to know before you go:
- Check the posted hours at the front desk, since they change by season.
- Bring a swimsuit and a towel, or rent a towel at the desk.
- Keep to the 20-minute limit so everyone gets a turn.
- Skip the soak if you have heart problems or high blood pressure, unless your doctor says it is fine.
- Drink water before and after your soak.
Hot water can make you dizzy. Sit down if you feel light-headed, and leave the pool when your time ends. Kids should always have an adult nearby.
Walk the Mineral Terraces
The terraces are the part of the park you will remember most. Hot water flows over the rock and leaves bands of orange, yellow, and white. A boardwalk lets you walk along the edge. The path is flat, so most people can handle it, and it suits families well.
Stay on the boardwalk. The water can burn your skin, and the crust near the edge can break. Take photos from the path and keep a firm hold on small children.
Cross the Swinging Bridge
The swinging bridge crosses the Bighorn River and gives you a great view of the water and the cliffs. It moves a little as you walk, and that adds some fun. Keep a steady pace and hold the rail if you feel unsure. The bridge looks best in the morning, when the light hits the terraces and the crowds stay small.
See the Bison Herd
The park keeps a small herd of bison in a large fenced pasture. You can drive a loop through the area and watch the animals from your car. Bison look calm, but they are wild and fast. Stay inside your vehicle and never try to feed or touch them. Bring binoculars if you have a pair, since they let you see more detail from a safe distance.
Try the Hiking and Overlooks
The park has short trails that climb above town. You can walk to an overlook and see the river valley, the terraces, and the red rock hills around Thermopolis, WY. Most trails take less than an hour. Wear sturdy shoes, bring water, and pack a hat. The Wyoming sun feels strong, even on cool days.
Check the weather before you start. Wind can pick up fast in the basin, and afternoon storms can roll in during summer.
Visit the Wyoming Dinosaur Center Nearby
If you want more to do, drive a few minutes to the Wyoming Dinosaur Center. It holds real fossils, a working lab, and full skeletons. Kids love it, and adults tend to stay longer than they plan. Pair it with your park visit and you have a full day.
Best Time to Visit
Each season has its own perks.
Spring brings mild days and small crowds. The river runs high, so the views look great.
Summer gives you long days and full access to every trail. It also brings the biggest crowds, so arrive early.
Fall offers cool air and gold cottonwoods along the river. Many people say this is the best time for a soak.
Winter turns the park into a quiet place. Steam rises off the terraces in the cold air, and a hot soak feels great after a chilly walk. Dress in layers and watch for ice on the paths.
If you want ideas for other trips around town, learn more about what to do in each season.
Tips for a Safe and Smooth Visit
A little planning keeps your day easy. Use these tips as a checklist.
- Arrive early to find parking and skip the lines.
- Wear shoes you can walk in and sandals for the pool deck.
- Pack water, snacks, sunscreen, and a light jacket.
- Keep your phone and keys in a dry bag near the pool.
- Pack out your trash and leave the area cleaner than you found it.
- Follow every posted sign. Rangers place them there for a reason.
Respect for the park matters. The terraces grow slowly, and one careless step can damage them for years. Stay on the paths and you help keep the site safe for the next visitor.
Where to Eat and Stay in Thermopolis, WY
Thermopolis has a small, friendly downtown. You can find diners, burger spots, and coffee shops a short drive from the park. Many local places serve large portions at fair prices. Lodging ranges from simple motels to resorts with private mineral pools. Book early in summer, since rooms fill fast.
If you plan to visit during a local event or holiday weekend, call ahead. Small towns have limited space, and a quick call saves you stress.
Plan Your Day
Here is a simple schedule that works for most visitors:
- Start at the State Bath House for your free soak.
- Walk the terraces and cross the swinging bridge.
- Drive the bison loop and take photos from your car.
- Eat lunch downtown.
- Visit the Wyoming Dinosaur Center in the afternoon.
- End the day with a short hike to an overlook at sunset.
This plan fits into one day and gives you a mix of rest and activity. If you have more time, spread it over two days and slow the pace.
Final Thoughts
Hot Springs State Park gives you a rare mix of nature, history, and relaxation in Thermopolis, WY. You get a free soak, a scenic walk, and a close look at wildlife, all in one place. Plan ahead, follow the rules, and take your time. You will leave with good photos and a calm mind.