A convection-style dry sauna that heats sauna stones. Its main feature is the scheduled löyly (aufguss) service, where a large amount of water creates a powerful burst of heat all at once. The heat is said to be "painfully hot," making this an intense sauna experience that is irresistible for sauna enthusiasts seeking a strong sweat.

A cold plunge bath used to rapidly cool the body after being heated to the limit by the extremely hot löyly. The thoroughly chilled water tightens the whole body at once and plays an important role in bringing on a deep state of totonou during the later outdoor air bath in the open-air area.