Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Tosa Pokapoka Onsen is located in Kōchi, on the island of Shikoku, Japan. Its sodium-chloride water emerges at around 41°C, with an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — In Tosa (Kōchi), the free-spirited Shikoku province whose independent-minded samurai produced Sakamoto Ryoma — the reformer who helped end Japan's feudal era — Pokapoka Onsen (warmly comfortable spring) captures the easy-going, open character of this Pacific-facing island city; the nearby Hirome Market food hall and Kochi Castle complete a day of authentic Tosa culture.