The 'Hell Heat Wave Sauna' blows powerful hot air every 10 minutes. It induces rapid sweating through forced convection, and with a pathway leading from a mist shower to a natural cold plunge bath, you can achieve a deep reset feeling even in a short time.

A natural cold plunge bath cooled by a chiller using spring water from 600 meters underground. With a temperature of about 16-17°C, it is 'refreshingly cold' with a gentle touch and minimal stimulation. The temperature difference from the high-temperature sauna is pleasant, and the instant cooling sensation tightens the body.

A lukewarm bath using the same spring water, with an intermediate temperature range. At about 25-30°C, it gently reduces heat without overcooling. Ideal for beginners and those seeking low stimulation, it provides deep relaxation and a calming effect by alternating with the strong cold bath, promoting parasympathetic dominance. It is comfortable for fatigue recovery and evening relaxation.