A kind of landmark in Thermopolis.
The hot springs at the commercialism facility, which is hard to believe that it is located in a state park, were the real deal.
Vapor Cave is a must!
Private facility that exists within Hot Springs State Park due to its historical background.

It is similar to another private walk-in facility, Hellie's Tepee Pool, but has a slightly different character.
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ReferenceHellie's Tepee Pools (Thermopolis) - Hot Springs in Wyoming
I like to do nothing special all day except soak and lie down. It must be even better if there is a good thermal water. There is a place in Wyoming for such people. Old-fashioned spa resort There are three ...

Star Plunge is more for tourists.
There is also a giant waterslide called Super Star 500 (available only from Memorial Day to Labor Day, not available during my visit).

The interior had a retro atmosphere, as it has been in business since 1900, but it was very busy.

Nostalgic arcade game machines were lined up near the reception area.

Clothing is required in the pool area.
There were lockers in the men's and women's changing rooms.

When I stepped into the pool area, I was almost pushed over by the violent sulfur smell.
It was a beautiful turquoise blue, the famous hot water of Thermopolis.

In the foreground on the right was a shallow pool for kids.
On the left was a U-shaped jet bath.

Lobster pool next to the large indoor pool.
The water temp was about 104 degrees F, not too hot, but the water with many ingredients warmed me well.

The waterslide was housed in a not so spacious room.

It is one of three sliders in total.

The walls in this area showed the long history of the facility.

Vapor Cave is an attraction with a fountain of thermal water in the center of a room, which is a natural steam bath.



It was a man-made cave, but it had reached a state of the art like Antoni Gaudí's architecture, probably due to its collapse caused by the content of the thermal water.

This is a must-see spot where you can enjoy the volcanic odor until you are dizzy.
Amazing water that cannot be underestimated

Outdoors, there was an even larger pool.
Even in a place like this, I could not feel the chlorine disinfection.

There was a small hill at the north end of the poolside where the smallest water slide was located.

Even the pool for entry to the slider looked like it was using geothermal water.
How much hot water can be produced?

There was a hot tub around the exit of the slider, with air bubbles constantly being fed into it.

The water temp at the water outlet was 122 degrees F
If you were to underestimate it as a commercial facility for tourists, you would be surprised to find the real water here.

Summary
Star Plunge, Thermopolis, Wyoming, U.S.
My rating
Type: Walk-in
Rule: Clothing required
Chemical use: Not detected
Water temp: Up to 122 degrees F