A genuine dry sauna with high heat and low humidity, installed in the large bath area. Even though the room temperature is mild, the heat circulates well, so you can feel a pleasant sweat as soon as you enter. There is no TV, creating a quiet, soundless space where you can step away from everyday noise and face yourself in a calm, meditative state. After the sauna, you can smoothly access the cold plunge bath right in front of you.

A cold plunge bath placed right next to the dry sauna, offering a crisp, refreshing chill. It cools down your heated body in a revitalizing way, and the water feels gentle enough that you can submerge yourself without strain. Outdoor air bathing here, wrapped in the clear air drifting in from Biei's great nature, is accompanied by birdsong and the murmur of the valley as background music, bringing deep healing and totonou.