Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
In Saga, Saga Prefecture, Mitse Onsen (Yamabiko no Yu) offers sodium-chloride thermal water heated to 41°C. The bathhouse includes an indoor bath, an outdoor bath (rotenburo) and a sauna.
Insider tip — Yamabiko no Yu, the mountain echo spring, serves Saga City facing the extraordinary Ariake Sea tidal mudflat — one of Japan largest intertidal zones where 6-metre tidal ranges expose vast mudflats supporting unique ecosystems and the shellfish harvesting that defines Saga coastal cuisine. The Yoshinogari Yayoi archaeological site near Saga City is Japan most completely excavated Yayoi period (300 BCE) village, reconstructed in full to show the architectural complexity of ancient Japanese society.