A campfire sauna themed around 'passion.' A campfire is placed in the center, allowing you to relax and warm your body and mind while surrounding the flames. The space is designed to naturally foster dialogue with friends and family, functioning as a place to deepen bonds. While gazing at the flickering flames, unspoken truths and feelings are drawn out.

A sauna themed around 'growth.' Climbing the spiral deck, you reach a height where you can feel the forest at the same level as the trees. The structure leads from the sauna room on the first floor to the outdoor air bath space on the rooftop, making the ascent itself part of the experience. The gentle heat from one of the largest wood-burning stoves in the country gradually penetrates deep into the body. Benches are arranged at angles conducive to conversation, and the area is open as a mixed-gender swimsuit-required space.

A sauna themed around 'order,' featuring a fully mirrored interior. The stainless steel mirrors reflect the forest, creating an inorganic art-like presence within nature. The interior is finished with warm pine wood, and the design allows heat to circulate thoroughly to the feet by sitting on a bench one level above the stove. In this serene space, you can face yourself and experience a thorough state of perfect relaxation.

A cold plunge bath using natural underground water in a continuous flow. Always filled with fresh water, its high transparency and crisp coldness envelop the body. It quickly tightens the body deeply steamed by the wood-burning stove, accelerating the state of perfect relaxation through the contrast of heat and cold. The water quality is soft, causing little strain even with prolonged soaking. Located near each sauna, it allows for a smooth transition between hot and cold baths.