Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Shisui Onsen, also called Yuraku no Sato, is located in Shisui, Chiba prefecture. Its sodium-chloride water surfaces at 41°C with a pH of 7.3, alongside an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Shisui sits between Narita Airport and the Chiba city sprawl, and this Yuraku no Sato outlet makes an ideal first or last Japan stop for travellers who want a real onsen experience rather than a hotel bath. The spring water is dark and rich, drawn from deep Kanto marine sediment layers.