The first designer sauna by world-renowned architect Shigeru Ban. A beautifully unified space with the architectural icon of a hexagonal design, featuring a wooden roof, skylights, chairs, and a cold plunge bath. Some chairs inside are movable, allowing for high flexibility to adjust to your preferred temperature and height. Experience an authentic Finnish sauna by controlling the convection of heat and steam with self-löyly. The window offers a serene view of the rice fields, creating a quiet time in harmony with nature. Deeply relax in the outdoor air bath space integrated with the open-air bath, feeling the breeze of the Shonai Plain.

A sauna featuring benches modeled after paper tubes, symbolizing Shigeru Ban's architectural design. A water basin spreads outside the window, allowing you to sweat thoroughly in an open atmosphere. Enjoy the essence of an authentic Finnish sauna by freely manipulating steam with self-löyly. After the sauna, indulge in a blissful time with an outdoor air bath, gazing at the water basin and sky, and feeling one with nature. In a serene space where white walls and moonlight harmonize, deeply relax both body and mind.