Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Oyabe Onsen / Tower no Yu, in Oyabe, Toyama Prefecture, has sodium-chloride water at 41°C. The bathhouse includes an indoor bath, an outdoor rotenburo, and a sauna.
Insider tip — Tower no Yu serves Oyabe City on the edge of the Tonami Plain, famous worldwide for its scattered farmhouse landscape where individual homesteads surrounded by windbreak zelkova groves create a uniquely Japanese patchwork visible from mountain overlooks. The Oyabe River flows through rice paddies producing Toyama premium Koshihikari rice, and the Zenkoji-do temple in Oyabe preserves a rare regional Amitabha Buddha triad from the 13th century.