Shirabu Onsen Nakaya Annex Fudokaku
中屋別館不動閣なかやべっかんふどう閣
Day Use
YesMay 7, 8, 12, 13, 14, 26, 27 / Jun 2, 3, 16, 17, 23, 24 / Jul 7, 8, 22, 23 / Aug 5, 6, 18, 19, 25, 26 (subject to change)
Adults 700 yen, children 300 yen (up to elementary school age). Outdoor bath opens around 14:00. May close without notice due to crowding or cleaning.
Bathing & Water
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Capabilities
Private bath available for day-use visitors or hotel guests to reserve
Shared bathing area for all genders
Policies & Services
Restaurant or dining open to visitors (not just hotel meal plans)
Shower, wash stations, soap and shampoo provided
Views
River
ForestAbout
Fudokaku sits along the Mogami River headwaters in Shirabu Onsen, a small mountain resort that has been drawing bathers since 1312. The ryokan's signature bath is the Olympic Bath (オリンピック風呂), a deliberately narrow indoor pool stretching 18 meters in the men's section and 13 in the women's, designed so that every bather sits facing the gorge. The name dates to 1964, when the bath opened to mark the Tokyo Olympics and the inn later received the stone torch platform used in the Yamagata leg of the relay. The current bath is the second generation, rebuilt in 1991. Outside, Fudokaku has the only open-air bath at Shirabu, with the same gorge and forested valley below. The water is clear.
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Last updated June 25, 2026