Forest park setting and pH 9.9 strongly alkaline, beautifying waters
Yamanashi Tsuru City
Located in the mountainous area of Tsuru within a rich forest park, Basho Tsukimachi no Yu is a municipally operated day-use hot spring boasting a strongly alkaline source with a pH of 9.91. The spacious indoor baths include a non-heated source lukewarm bath at about 32°C where you can lose track of time and enjoy long soaks. After thoroughly sweating it out in the authentic dry sauna, which reaches about 95°C, and cooling off in the cold plunge bath fed by natural water, the outdoor relaxation area where you can breathe in the fresh air of the great outdoors is exceptional. The facility is clean and offers excellent cost performance.
Typeindoor
A lukewarm bath using the source water as-is at about 32°C. The strongly alkaline pH 9.91 gives a smooth, silky feel to the skin that can be experienced most directly here, making it ideal for resting after the sauna or for long soaks.
Typeopen_air
An outdoor bath with views of natural trees and the mountain slope. The rock bath and stone bath alternate weekly between men and women. You can leisurely soak while enjoying the clear fresh air.
Sauna TypeDry Sauna
Stove Typefar_infrared
Capacity6people
A convection-style dry sauna set to about 95°C for men and about 85°C for women. This quiet space has no TV or background music, allowing you to slowly work up a sweat and relax to your heart's content.
Water Qualitynatural
Capacity1people
A compact cold plunge bath located right next to the sauna. Natural water flows from a spout, producing a crisp chill of about 18°C to 20°C that firmly refreshes and tightens the body.
Closed Days: Monday
874-1 Tozawa, Tsuru, Yamanashi 402-0022, Japan
Gender Access
Gender Separated
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more
Forest park setting and pH 9.9 strongly alkaline, beautifying waters
Yamanashi Tsuru City
Located in the mountainous area of Tsuru within a rich forest park, Basho Tsukimachi no Yu is a municipally operated day-use hot spring boasting a strongly alkaline source with a pH of 9.91. The spacious indoor baths include a non-heated source lukewarm bath at about 32°C where you can lose track of time and enjoy long soaks. After thoroughly sweating it out in the authentic dry sauna, which reaches about 95°C, and cooling off in the cold plunge bath fed by natural water, the outdoor relaxation area where you can breathe in the fresh air of the great outdoors is exceptional. The facility is clean and offers excellent cost performance.
Typeindoor
A lukewarm bath using the source water as-is at about 32°C. The strongly alkaline pH 9.91 gives a smooth, silky feel to the skin that can be experienced most directly here, making it ideal for resting after the sauna or for long soaks.
Typeopen_air
An outdoor bath with views of natural trees and the mountain slope. The rock bath and stone bath alternate weekly between men and women. You can leisurely soak while enjoying the clear fresh air.
Sauna TypeDry Sauna
Stove Typefar_infrared
Capacity6people
A convection-style dry sauna set to about 95°C for men and about 85°C for women. This quiet space has no TV or background music, allowing you to slowly work up a sweat and relax to your heart's content.
Water Qualitynatural
Capacity1people
A compact cold plunge bath located right next to the sauna. Natural water flows from a spout, producing a crisp chill of about 18°C to 20°C that firmly refreshes and tightens the body.
Closed Days: Monday
874-1 Tozawa, Tsuru, Yamanashi 402-0022, Japan
Gender Access
Gender Separated
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more