Riverside onsen inn open to day visitors, with separate Finnish-style high-temperature saunas in the two main baths and scheduled staff löyly events. Adult admission is ¥800 on weekdays or ¥950 on weekends; guests under 15 may not use the sauna.
Amenities
Sauna Rituals
Cold Plunge
Private Sauna Available
Opening Hours
Daily day-use 10:00–23:00; last entry 22:30; morning bath 06:00–09:00