Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Ogawara Tennen Onsen Ii Yu, in Ōgawara, Miyagi Prefecture, heats natural sodium-chloride water to 41°C, with an indoor bath, outdoor rotenburo and sauna.
Insider tip — Ii Yu, the good spring, serves Ōgawara-machi at the foot of the Zao volcanic chain on the Shiroishi River. The river avenue between Ogawara and Shiroishi is lined with 1,200 cherry trees that create one of Miyagi most spectacular tunnel-of-blossoms each April, and the Shiroishi Castle reconstruction at the northern end of this blossom corridor is one of Tohoku finest surviving feudal castle town landscapes.