Hiranai Ikiiki Kenkokan, also known as Yogoshiyama Onsen, is located in Hiranai, Aomori prefecture. Its thermal water surfaces at 40°C with a pH of 7.3, complemented by an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Hiranai Ikiiki Kenkokan Yogoshiyama Onsen is a municipal health center in Hiranai town on Mutsu Bay in Aomori Prefecture. The thermal waters are neutral and mild, making them accessible for all ages and health conditions. Hiranai is famous for its sea-otter population in Mutsu Bay, and the center doubles as a community gathering space for the fishing village. Bathing here offers an intimate glimpse into daily life in rural northern Japan.