Ranging from temperatures of 5 degrees celsius to 20 degrees celsius, plunge pools are used after coming from a heated environment like a sauna or steam room. Dipping inside the 1.5 meter pool, it delivers therapeutic effects such as alleviating some joint and muscle pain. Believed to have been practiced for thousands of years, it is reported that people would flock to numerous cold springs, mountain streams or underground cisterns and dip themselves in the water to relax. The cold water also releases endorphins and analgesic hormones.