Day Use
Yes14:15–00:30
Closed: Friday.
¥550
Bathing & Water
Outdoor BathNo
Open-air outdoor bath
Indoor BathYes
Enclosed indoor bathing area
SaunaYes
Dry heat sauna room
Cold BathYes
Cold water plunge bath, typically used after sauna
Policies & Services
WashingYes
Shower, wash stations, soap and shampoo provided
TowelsYes
Towels available to rent or borrow
ParkingNo
On-site or nearby parking available
Highlights
Jet Bath
Electric BathPrograms
About
This is the only sento in Saiin, operating since 1925. We heat natural subterranean water with a wood fire. A set including a towel, soap, shampoo, and conditioner is available free of charge so you don’t need to bring anything with you.
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Last updated June 19, 2026