Natural hot spring
TypeNatural Hot Spring
An alkaline simple hot spring with pH 10.3. Enjoy the skin-beautifying waters across a variety of baths including an open-air bath, a reclining bath, a bubble bath, and a jacuzzi-style tub.
Mori no Naka no Onsen Nanbu no Yu
A soothing onsen space that feels like exploring the forest
Yamanashi Nanbu Town
Mori no Naka no Onsen Nanbu no Yu in Nanbu Town is a day-use onsen facility renewed with the concept of a "forest onsen". Its high-concentration alkaline hot spring, pH 10.3, is sourced from 1,500 m underground and is popular for its skin-smoothing properties. The spacious public bath area includes a dry sauna and a mist sauna, and just outside the sauna there is a mild cold plunge bath kept at around 20°C. With a manga and book corner holding about 8,000 volumes and a selection of full-scale gourmet dining options, you can relax here all day.
Hot Spring & Bath Information
Natural hot spring
TypeNatural Hot Spring
An alkaline simple hot spring with pH 10.3. Enjoy the skin-beautifying waters across a variety of baths including an open-air bath, a reclining bath, a bubble bath, and a jacuzzi-style tub.
Sauna
Dry sauna
90°CSauna TypeDry Sauna
Stove Typeelectric
Capacity14people
Men'sWomen's
A dry sauna made from Hinoki cypress sourced in local Nanbu Town, with a pleasant wood aroma. It is spacious and feels very open.
Mist sauna
50°CSauna TypeSteam Sauna
Capacity5people
Women's
A mist sauna exclusive to the women's bathing area. The temperature is on the lower side but the humidity is high, gently warming the body.
Cold Bath
Cold plunge bath
20°CWater Qualitytap
Capacity6people
Men'sWomen's
A relatively large cold plunge bath located immediately outside the sauna that can hold about six people. The water temperature is around 20°C, with a soft feel that makes it comfortable to stay in for longer.
Business Hours
Monday
10:00〜21:00
Tuesday
10:00〜21:00
Wednesday
10:00〜21:00
Thursday
10:00〜21:00
Friday
10:00〜21:00
Saturday
10:00〜21:00
Sunday
10:00〜21:00
Holiday
10:00〜21:00
Closed Days: None
Address
8106-1 Uchifune, Nanbu Town, Minamikoma District, Yamanashi Prefecture 409-2305, Japan
Website
Onsen & Spa Facilities (Super Sento, Sauna, Spa)
Gender Access
Gender Separated
❓
Tattoo Policy
Unknown (Please Check)
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