Day Use
YesIrregular closures; Thursdays and one Wednesday per month are regular days off. Check the operating calendar.
Weekday adult 1,100 yen / child 700 yen; weekend/holiday adult 1,700 yen / child 800 yen; peak season adult 1,900 yen / child 1,000 yen. 2-hour admission. Includes large bath, rotenburo, sauna, foot bath.
Bathing & Water
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Dry heat sauna room
Cold water plunge bath, typically used after sauna
Capabilities
Private bath available for day-use visitors or hotel guests to reserve
Shared bathing area for all genders
Policies & Services
Allows entry with visible tattoos
Large baths are generally off-limits for tattoos; allowed if fully covered with tape or by booking the private bath.
Welcomes children and families
Children under 3 cannot use the large baths; 3 and older may use them (with entry fee).
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
On-site or nearby parking available
Views
Mountains
ForestHighlights
Foot BathAbout
Nanasawa-so is a small ryokan near Atsugi with indoor and outdoor baths fed by a natural spring known for its clear, strongly alkaline water that leaves skin silky and slippery. Separate men's and women's baths each include a rotenburo. A compact sauna connects to two tub-style cold plunge baths, both fed on kakenagashi (源泉かけ流し, unrecirculated spring water). A private kashikiri bath also runs on kakenagashi. Outside, a foot bath runs doctor fish in summer and switches to hot spring water for the cooler months.
Loading map…
Reserve or check availability on a booking site.
No reviews yet
Be the first to share your experience!
Last updated June 25, 2026