Built in 1890, Evans Plunge is the world's largest natural warm water indoor swimming pool and waterpark. Warm mineral water at a temperature of 87 degrees flows through the pool at a rate of 5,000 gallons per minute.
Evans Plunge waterpark has three waterslides, tarzan ring swings, fun tubes and kids pools. A full-service health club is also located on site.
Phone: (605) 745-5165
Evans Plunge is located at the north edge of Hot Springs, South Dakota, just off Highway 385.