The hot springs, which were a product of Mt. Sanbe eruptions, have a 1,300-year history.
There are 17 open-air spas that guests can bathe in even without staying overnight in the guest house. There are various types of baths such as a rock bath, sake barrel bath, rice cooker bath, and bamboo grass boat bath. Detached private rooms are also available. *Guests are not required to stay overnight to use the baths.