Star Plunge

Star Plunge is a historic commercial hot springs water park situated within Hot Springs State Park in Thermopolis, Wyoming, one of the oldest thermal bathing facilities in the United States. The venue draws from the park's natural Big Spring, channeling mineral-rich geothermal water at temperatures ranging from 90 to 104 degrees Fahrenheit into its indoor and outdoor pools, hot tubs, and water slides. Highlights include a soothing vapor cave, a fitness and weight room, exhilarating water slides, and the relaxing hot pool with water and air jets. The location within Hot Springs State Park places it in one of Wyoming's most scenic natural settings, where the world's largest hot mineral spring flows freely. Star Plunge has been a beloved destination for therapeutic soaking and family water fun for well over a century, drawing visitors from across the region to experience its unique geothermal waters.