Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Popai Onsen is located in the city of Aomori. Its sodium-chloride water, heated to 41°C, supplies an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Popai Onsen serves the southern Aomori city commuter belt where rice and apple farms transition to urban suburbs. The facility draws on the characteristic dark saline water of the Tsugaru Plain aquifer, and its unpretentious neighbourhood character is typical of the down-to-earth local bathing culture of northern Japan.