Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
BicarbonatesSodiumCalcium
Tabayama Onsen Nomekoi Yu, in Tabayama village, Yamanashi Prefecture, offers bicarbonate thermal water at 40°C with a pH of 8. An indoor bath, an outdoor rotenburo and a sauna are on offer.
Insider tip — Tabayama-mura is one of Yamanashi's smallest and most remote villages, population under 700, deep in the Taba River valley. The Taba River feeds the Tama River — the same river that flows through western Tokyo to supply much of the capital's drinking water. Nomekoi Yu ('Beautiful Spring' in the local mountain dialect) serves hikers and cyclists on the Tama River Source Trail connecting Yamanashi's alpine interior to Tokyo's Okutama watershed. One of the most pristine mountain village onsen experiences within the greater Tokyo area.