Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
BicarbonatesSodiumCalcium
Shin Tojiba, home to Akiyama Onsen, is located in Uenohara, Yamanashi prefecture. Its bicarbonate water, pH 8, heats to 40°C and supplies an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Akiyama Onsen in Uenohara sits at the eastern gateway of Yamanashi Prefecture where the Sagami River system begins. Uenohara is a popular day-trip destination from Tokyo for hiking the Katsura River valley, and the Shin Tojiba new healing spring makes a perfect restorative stop between the train station and the trailheads.