Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
BicarbonatesSodiumCalcium
Sashikirikyo Onsen Sakakitaso, in the village of Chikuhoku (Nagano), offers bicarbonate water with a pH of 8, at 40°C, across an indoor bath, an open-air outdoor bath and a sauna.
Insider tip — Sashikirikyo gorge, carved by the Nishina River through the mountains of Chikuhoku-mura, provides a dramatic setting for this hillside spring resort. The village retains traditional farmhouse architecture among walnut and chestnut forests, and the gorge itself turns brilliant amber and crimson each October.