Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Sanseji Onsen welcomes bathers in Hirosaki, Aomori prefecture, at the northern tip of Honshū. The sodium-chloride water reaches 41°C. An indoor bath, an outdoor rotenburo and a sauna round out this local bathhouse.
Insider tip — Hirosaki is Aomori's castle city, famous for its spring cherry blossoms. After exploring the park, Sanseji Onsen is a local retreat where sodium-rich waters soothe tired legs from hours of walking.