A superb dry sauna located inside the large bath on the top 8th floor, offering a panoramic view of the timeless scenery of Lake Toya through the windows. The room temperature is maintained at around 90 to 95 degrees Celsius, and guests can slowly sweat while watching TV in a comfortable wave of heat. Right beside the entrance, a refrigerator stocked with chilled mineral water is provided, and this attention to detail and refined hospitality is part of its charm.

An exceptionally smooth, top-class cold water bath that makes luxurious use of the lake water of Lake Toya, nurtured by nature itself. The water temperature is kept at a consistently cool 10 to 12 degrees Celsius, rapidly and crisply cooling the heated body after the sauna. In the open-air area, there are comfortable relaxation chairs for perfect resting, allowing guests to enjoy an elevated open-air bathing experience while gazing at the stars and the lake.