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Minami Alps Onsen Nirasaki

Nirasaki, Yamanashi Prefecture, Japan
Minami Alps Onsen Nirasaki
Location
Nirasaki, Yamanashi Prefecture, Japan
Water type
bicarbonate
Temperature
40 °C
pH
8

Water profile

Thermicity
Sedative
40 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Restorative
LowHigh

Loaded with major ions — the essential minerals (Ca, Mg).

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

BicarbonatesSodiumCalcium

Nirasaki, in northern Yamanashi Prefecture at the northern end of the Kofu basin, is the gateway community to the Minami Alps — the Southern Japanese Alps — whose granite peaks include Mount Kita, Japan's second-highest mountain at 3,193 metres, and the challenging wilderness ridges of the Akaishi range that attract serious alpinists from across Japan each summer. Minami Alps Onsen Nirasaki draws on sodium and bicarbonate thermal waters from the geothermal resources of the Fossa Magna geological zone where the Japanese Alps thrust powerfully from the earth, offering restorative baths for mountaineers descending from the high alpine wilderness of the Koma-ga-take and Hoji-ridge mountain circuits. The Minami Alps National Park trailhead access, the legendary crystal mineral deposits of the Yamanashi mountain zone, and the fruit orchards of the Nirasaki valley producing famous Fuji apples and Koshu grapes create a richly varied gateway experience for alpinist thermal spa visitors in northern Yamanashi.

Insider tip — Nirasaki sits at the northern end of the Kofu Basin where the Kamanashi River emerges from the deep Southern Alps gorges. The town serves as a gateway to the Minami Alps wilderness, and its onsen draw bicarbonate waters from geologically complex strata formed by mountain uplift. After a day of hiking in the Minami Alps wilderness, these alkaline baths provide exceptional muscle recovery. The dramatic riverside scenery of granite cliffs and forested ridges rivals any alpine spa setting in Japan.
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Frequently asked questions

How hot is the water?
The water runs quite hot here, around 40 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features bicarbonate water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).