A hot spring adjacent to Hirugano-kogen (Hirugano Plateau) “Bokka-no-sato”. You can enjoy it only in winter. Relax in “Forest Bathhouse” where you can feel like you are in the forest, “Herbal Bath” where you can enjoy herbs changing monthly, and “Mint Mist Room” where you can enjoy refreshing steam. Bathing at this open-air bath with clear and delicious air is very refreshing. You can enjoy dishes made with locally produced seasonal ingredients at its restaurant too.