Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Inari Onsen Furoso, in Mizunami, Gifu Prefecture, offers sodium-chloride water at 41°C. An indoor bath, rotenburo and sauna make up the bathhouse.
Insider tip — Furoso, the old furnace lodge, serves Mizunami City built on one of the world richest Miocene fossil beds where the Mizunami Group sediments have yielded over 1,500 marine fossil species including whale bones, ancient sharks, and vast shell deposits from the sea that covered central Japan 15 million years ago. The Mizunami Fossil Museum is one of Japan premier paleontology attractions alongside the city ceramics heritage.