Visitors can sweat it out in a tent sauna with a wood-burning stove, then cool off in an underwater cave for an invigorating contrast to beat summer fatigue. Published on By A facility located at one of the caves in the in Bungo Ono City, Oita Prefecture, has become a popular spot for Japanese sauna enthusiasts. It features a tent sauna near the cave's entrance, which means visitors get to cool off in the cave's cold water for a refreshing contrast after their sauna session.
The water remains at around 16°C (60.8°F) throughout the year. The specially designed tent sauna features a wood-burning stove, allowing for higher temperatures than typical saunas.
After sweating for about 10 minutes, visitors can walk just 30 meters to the cave entrance and immerse themselves in the clear, cool groundwater. The invigorating cold plunge practically guarantees a sigh of relief. Surrounded by the cave's rocky surfaces, small fish can be seen swimming in the pristine, naturally filtered water.
After cooling down, visitors can relax on a reclining chair under the open sky. Since its opening in March 2021, the limestone cave sauna has been a hit, with weekend reservations often filling up three months in advance. A 25-year-old sauna enthusiast from Miyazaki shares, "The sauna's high temperature and clean water make it incredibly satisfying.
It's a unique experience worth sharing." He plans to post photos of it on social media. The manager of the operating company said, "More than half of ou.