Tsuru Onsen

Tsuru, Yamanashi Prefecture, Japan

Location: Tsuru, Yamanashi Prefecture, Japan
Water type: silica
Temperature: 42 °C
pH: 7.2

Water profile

Thermicity

Sedative

42 °C

LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation

Balancing

LowHigh

Rich in trace elements — gentle on the skin.

Buoyancy

Standard buoyancy

LowHigh

Soft water — natural, classic buoyancy.

SiliceSodiumBicarbonates

Tsuru, nestled in the Fuji Five Lakes region of Yamanashi Prefecture, sits at the eastern approach to the volcanic terrain surrounding Mount Fuji. The onsen here draws silica-rich water at 42 °C, with a near-neutral pH of 7.2, lending a smooth, skin-softening quality to the bath that is a hallmark of silica springs throughout Japan. Bathing in Tsuru means breathing mountain air and absorbing the unhurried cadence of a Yamanashi town whose landscape — forested peaks, the Katsura River, the ever-present cone of Fuji — has shaped the sensibility of its thermal tradition for generations.

Insider tip — Tsuru City lies in a broad alluvial basin ringed by the Oku-Musashi hills, where silica-concentrated geothermal water rises through sandstone at 42°C. Locals value the waters for their beautifying properties, and many facilities market day-use packages combining the baths with traditional kaiseki meals. The surrounding countryside produces some of Yamanashi's finest table grapes, available roadside in late summer. An early-evening soak pairs perfectly with a glass of local Koshu white wine afterward.

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