A cabin-style sauna that can accommodate larger groups. Offers a more spacious environment than the tent sauna, allowing you to sweat in a relaxed manner. The heat from the wood stove reflects off the wooden walls, filling the interior with a gentle warmth. Experience special moments with friends while feeling the nature outside.

Utilizes the Russian-made tent sauna 'MORZH.' The gentle heat generated by the wood stove envelops the entire body, promoting a thorough sweat. Enjoy the unique openness of the outdoors, feeling the sounds and breezes of nature while being comfortably steamed. With self-löyly, you can freely adjust the heat. Accommodates up to 10 people, allowing you to enjoy the sauna with friends without any reservations, as it is reserved for private use.

A luxurious experience where you can use Japan's largest underwater stalactite cave as a cold plunge bath, unique in the world. The crystal-clear spring water, maintained at a constant 16°C year-round, quickly cools the body heated by the sauna. When you immerse yourself in the mystical space surrounded by stalactites, the natural beauty sculpted over tens of thousands of years unfolds before your eyes. The water quality is very soft and gentle on the skin. This is an overwhelmingly impressive experience unmatched by any other sauna facility.