I love to spend all day long doing nothing special other than soaking and lying down.
It must be better if there is good geothermal water.
Such place is in the State of Wyoming.
Buffalos
In the Hot Springs State Park, you will find herds of the American bisons, commonly known as buffalos.
Photo by J. Stephen Conn - Lone Bison Bull (2009) / CC BY-NC 2.0
The number of buffalos in North America before the Westerner's settlement are estimated 60 million.
A bison was one of major food sources among American Indians, so that it has a history of being aggressively killed in order to integrate Indians into the U.S. administrative system.
There is geothermal water gushing in the State park.

White Sulfur Spring, Thermopolis, Wyoming, U.S.
The mineral deposits tell the superior quality of the water, but you cannot dip in this as there is no pool.
Old Health Resort
Out of three walk-in spa facilities here, Hellie’s Teepee Pools looked especially rustic to me.
The dome-shaped ceiling was interesting, but apparently got older.
As for myself, I really like the rundown atmosphere!
Under the characteristic ceiling, there is a large indoor pool.
The water slide is for children, but the water comes from the mineral source is authentic, not chlorinated.
The water temperature of the largest pool was around 95 degrees F.
This smaller pool was around 104 degrees F.
All spa facilities in the Hot Springs State Park use the same thermal water from a source, but the appearance differs depending on the condition.
Adding tap water makes it transparent; oxidation makes it opaque as time passes.
I like the steam bath the best in this facility.
Hot mineral water strongly gushes out to the room, full of smell of volcanic gas.


The water temperature in the outside pool was 94 degrees F.
Next to the pool, there were the step-like three hot tubs.
The temperature was around 106 degrees F; suitable for soaking.
Hot Springs State Park Bathhouse nearby is complimentary, but you have to exit in a 20-minute as a rule.
Only with 12.50 dollars, Hellie's Tepee Pools allows you to spend all day long, doing nothing special other than soaking and laying down.
Summary
Hellie's Tepee Pools, Thermopolis, Wyoming, U.S.
Rating
- StyleWalk-in
- RuleClothing required
- ChlorinationNone
- TemperatureUp to 106 degrees F
Related Hot Springs
Star Plunge is the other privately owned spa facility.

Star Plunge, Thermopolis, Wyoming, U.S.
It is over 100 years old, but renovated and looks to me more popular.
In the first place, it may be hardly imaginable that private facilities use hot springs water inside a publicly owned park.
This is due to the vested interests.
However, today they are facing existential emergency due to the reorganization of the State park.
If an excess regulation spoils the enchantment of American hot springs, it is simply the loss to the U.S. citizen.