The Star Plunge is a fun and natural wonder of Wyoming that is a highly sought-after destination for both locals and vacationers alike. Visit, relax in the hot spring, try all 3 water slides, and just enjoy a day surrounded by family and all the natural beauty the world has to offer. The history of the Star Plunge hot spring water park and recreation area stretches back over one hundred years.


Although it has been revamped and renovated multiple times since then, Star Plunge has been regularly rated as the top destination in the town of Thermopolis in the shadow of Monument Hill. The hot springs are also known for being sacred to the local Shoshone Native American people for their therapeutic properties. They were one of the draws that brought white immigrants to the area and can be traced back to 1826 in historical letters written by Daniel Potts. Star Plunge is located on the eastern side of the Bighorn River.

Permanent Attractions

The biggest allure and attraction at Star Plunge is the hot mineral springs, which are world famous and world renowned for their relaxing properties. Open every day from 9:00am to 9:00pm, the mineral springs are not only fun for guests but also greatly soothing for both the mind and the body. Guests can visit the hot springs in both the winter as well as the summer.

Besides the actual hot springs themselves, Star Plunge also has other features attractions located at the historic facility like the multiple water slides, both an indoor and an outdoor pool (which are both heated by the actual “Big” hot spring as well - the indoor at around 95 degrees Fahrenheit and the outdoor at around 90 degrees Fahrenheit), a basketball hoop, sundecks, a hot tub (kept at around 100 degrees Fahrenheit complete with multiple water and air jets to massage guests), a high jump, two Jacuzzis, a fitness room, a steam cave (also known as a “Vapor” cave, which is literally cut directly into the mountain and heated with the mineral springs hot water fountain that naturally occurs inside), a fountain waterfall, and a baby pool.

Full price admission is required for entry for guests 5 years old and older. Discounted admission is provided for both children and seniors. Group rates (30 people and over) are also offered.

All admission includes the entirety of the Star Plunge experience which comes out to be twelve attractions for just one admission price!

· Two Jacuzzies

· Two Baby Pools

· Three Water Slides

· One Natural Vapor Cave

· Two Large Mineral Pools

· Two Hot Tubs

Also available (for a dollar deposit) are rental bathing suits, towels, balls, tubes, and lockers. For guests who live in the area, season tickets/passes are available to buy. If interested, there are also tanning beds on the premises that can be rented for both one tan or for a month at a time.

Plan to stay all day or even multiple days! The fun and possibilities are endless while visiting Star Plunge and the hot springs offer a unique vacation experience that will be remembered for years to come!

Special Events

Although there are few special events located on the premises, the town that Star Plunge is located in (Thermopolis) has many varied and frequent special events located just steps from the hot springs. Many of those events are focused around seasonal events, like the Fourth of July fireworks and Freedom Bike Run, Octobrewfest, the Fall/Winter Festival, and many holiday events. Hike into the New Year at the state park on New Year’s Day, or enjoy the Demolition Derby in August. Also make sure to check out the Hot Spot car rally in June or Moonlight Madness in October. Another family favorite is the Dinosaur Dig that is offered for children from June through September.

Also, on a regular basis, the town hosts a variety of themed “strolls” through the town of Thermopolis. Many of these revolve around local artwork or local musicians. They are offered free of charge and give visitors a great chance to check out the diverse business offerings in the area.


Located in nearby Thermopolis are a variety of delicious dining options for guests who want to take a short break from the hot springs. From Mexican food at Las Fuentes, to the Thermopolis Cafe for burgers, steaks, and beer, there are enough options to satisfy even the pickiest eater.

Star Plunge, 115 Big Springs Drive, Thermopolis, WY, 82443, Phone: 307-864-3771

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