A dome-shaped sauna set in the rooftop open-air area on the 8th floor, with 360-degree glass walls. Enclosed in special insulated double glazing, it maintains a consistently clear view. By day, you can admire the deep blue shimmer of Lake Akan, and by night, the star-filled sky, while being enveloped in pleasant heat on wooden benches. It is also equipped with self löyly using aromatic water, allowing you to enjoy a luxurious sweating experience with the scent of the forest.

A refined Finnish-style sauna inside the 8th-floor public bath area. Soft indirect lighting gently illuminates the floor, enhancing a healing effect that seems to wash away negative feelings. Since automatic löyly is supplied every 10 minutes, the humidity and aroma remain pleasantly balanced, making it comfortable to sweat with less strain on the body. The beautifully curved benches create a sense of ease and reassurance.

A mysterious Finnish-style sauna installed in the 1st-floor public bath area, designed with a cave-inspired concept. The dim interior, lit by soft indirect lighting, is wrapped in a silence that makes you forget the bustle of everyday life. Fine mist from auto löyly keeps the room’s humidity pleasantly balanced and gently warms your body from the core. In this aroma-filled space, you can enjoy deep meditation and relaxation.

A cold plunge bath using Akan Hyakunen Water, mineral-rich spring water nurtured by the forest of Akan over nearly 100 years. With its mellow feel on the skin, it gently envelops the body after sauna use and provides a pleasantly cool, not overly cold, cooldown. Soaking in this refreshing water is an experience that lets you feel the blessings of nature with all five senses. Right nearby, there are rest chairs for outdoor air baths, where you can enjoy an exceptional sense of floating.

A cold plunge bath located near the Finnish-style sauna in the 1st-floor public bath area. Its refreshing coolness gently wraps the body warmed by the sauna and helps cool it down. The water feels mild on the skin, and one of its features is that you can cool down thoroughly without getting too cold. Outdoor air bathing here, while feeling the open atmosphere of the garden open-air bath nearby, brings the deep calm and totonou unique to Hokkaido’s land.