A bona sauna with heaters built into the space beneath the indoor benches. The far-infrared effects of the rock salt and loess covering the walls generate a gentle radiant heat that slowly penetrates deep into the body. Its soft warmth makes it easy to breathe, and it heats you evenly from head to toe while encouraging a pleasant, abundant sweat.

A sauna that has been renovated from a mist sauna into an authentic Finnish-style sauna. By pouring water over the sauna stones, you can enjoy self-löyly, where high-temperature steam and a subtle woody aroma spread throughout the room. Even with its mild temperature design, the high humidity invites abundant perspiration and deep relaxation.

A cold plunge bath located in the bath area that includes Ama no Iwato Sauna. With a pleasantly crisp chill, it gently envelops and tightens the body after you've warmed up in the sauna. It is spacious enough for you to relax while soaking up to your shoulders, offering a refreshing cooldown that leads naturally to a pleasant outdoor-air bath in the open-air area.