Oita Bungoono City
Inazumi Underwater Stalactite Cave is an outdoor sauna facility utilizing Japan's largest underwater stalactite cave, located in Bungoono City, Oita Prefecture. After sweating it out in the high-temperature tent sauna 'MORZH,' immerse yourself in the crystal-clear spring water of the cave, maintained at a constant 16°C year-round. This is a luxurious experience, unique in the world, where you can use an underwater stalactite cave as a cold plunge bath. The facility is fully reserved for one group at a time, allowing you to achieve a state of perfect relaxation in privacy amidst nature, without worrying about other guests. The usage time is approximately 2.5 hours, offering a refreshing escape for both body and mind in an extraordinary setting.
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.
Exclusive use for one group / Usage time approximately 2.5 hours
Oita Bungoono City
Inazumi Underwater Stalactite Cave is an outdoor sauna facility utilizing Japan's largest underwater stalactite cave, located in Bungoono City, Oita Prefecture. After sweating it out in the high-temperature tent sauna 'MORZH,' immerse yourself in the crystal-clear spring water of the cave, maintained at a constant 16°C year-round. This is a luxurious experience, unique in the world, where you can use an underwater stalactite cave as a cold plunge bath. The facility is fully reserved for one group at a time, allowing you to achieve a state of perfect relaxation in privacy amidst nature, without worrying about other guests. The usage time is approximately 2.5 hours, offering a refreshing escape for both body and mind in an extraordinary setting.
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.
Exclusive use for one group / Usage time approximately 2.5 hours
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.
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.
