Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
BicarbonatesSodiumCalcium
Takamori Onsen Ondai no Yakata, located in Takamori, Nagano Prefecture, draws bicarbonate water at 40°C. An indoor bath, an outdoor rotenburo, and a sauna make up this bathhouse tucked into the Takamori valley.
Insider tip — Ondai no Yakata, the hot spring mansion, serves Takamori-machi in the Ina Valley at the foot of the Southern Alps where the Tenryu River begins its 213-kilometre journey to the Pacific. The Ina Valley is a microclimate paradise producing unique agricultural specialties including tenryu cedar lumber historically floated downriver and the traditional soybean-and-grain miso called Ina miso that has fermented in the valley for 400 years.