Seionsou
清温荘せいおんそう
Day Use
YesAdults (junior high and above) ¥800, children (ages 3 to elementary school) ¥450. Sunday morning bath + breakfast buffet plan: adults ¥2,000. On cleaning day, day use starts from 16:00.
Bathing & Water
Open-air outdoor bath
Enclosed indoor bathing area
Dry heat sauna room
Cold water plunge bath, typically used after sauna
Uses natural hot spring water
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
Towels available to rent or borrow
Relaxation space for after bathing
Views
Lake
MountainsAbout
Seionsou is a public lodge in Tsunagi Onsen (繋温泉) run by a local government employees' mutual aid association. The baths are separated by gender and include an indoor pool and an open-air bath (rotenburo) with views over Lake Gosho (御所湖) and, on clear days, Mt. Iwate (岩手山). The water is a clear, faintly sulfurous spring that leaves the skin feeling smooth. A sauna and cold bath are also on site. Day use is available, and the lodge runs a morning bath on weekends. A longtime local favorite, it draws regulars who value the low-key atmosphere and honest pricing.
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