Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Yu no Sato Komachi Onsen, or Shikokuya, is set in Saijō, Ehime prefecture, on the island of Shikoku. Its sodium-chloride water at 41°C is split between an indoor bath and a rotenburo, with a sauna.
Insider tip — Saijo is famed throughout Japan for the purity of its groundwater, and this Komachi onsen draws on the same mineral-rich subsoil. The name Shikokuya celebrates Shikoku island spirit, and the facility makes an ideal rest stop for pilgrims on the 88-temple henro circuit.