YuutoronSuijinnoYu

Eight open-air baths and a flowing-source cold plunge bath

Nagano Fujimi Town

Located at the foot of Mount Nyukasa in Fujimi, Nagano Prefecture, Yuutoron Suijin no Yu is a day-use hot spring facility proud of its eight different open-air baths. The bathing areas alternate between men and women on different days, and the west-side area features a dry sauna (kama-buro). Instead of a conventional cold plunge bath, the facility uses a continuously flowing cold spring at about 22–25°C, offering a mild cooling experience.

Hot Spring & Bath Information

Suijin no Yu

TypeNatural Hot Spring

An alkaline simple sulfur spring. The water is 100% source-flowing (temperature adjustments made), producing a faint sulfur scent and a silky, smooth texture.

Sauna

Kama-buro (dry sauna)

85°C

Sauna TypeDry Sauna

Stove Typeelectric

Capacity5people

Men'sWomen's

A dry sauna of about 80–85°C installed only in the west-side area. It is a quiet space without a TV where you can relax while listening to healing background music. (Because the bathing areas alternate between genders day by day, there may be days when the sauna is not available.)

Cold Bath

Cold plunge bath (cold spring)

22°C

Water Qualityhot_spring

Capacity7people

Men'sWomen's

Instead of a standard cold plunge bath, the facility uses cold spring water at about 22–25°C that flows continuously from the source. It also has a waterfall jet, and the mild temperature makes it comfortable for longer soaks.

Business Hours

Monday
11:00〜19:30
Tuesday
11:00〜19:30
Wednesday
Closed Days
Thursday
Closed Days
Friday
11:00〜19:30
Saturday
11:00〜20:30
Sunday
11:00〜20:30
Holiday
11:00〜20:30

Closed Days: Thursday, Wednesday

Address

Fujimi 9547, Fujimi-machi, Suwa-gun, Nagano 399-0211, Japan

View on Google Maps

Website

https://yuutoron.com/
Onsen & Spa Facilities (Super Sento, Sauna, Spa)

Gender Access

Gender Separated

🏷️
Tattoo Policy
OK if fully covered with designated stickers
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