Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Super Sento Yuyu Land is a public bathhouse complex in Kōriyama, Fukushima Prefecture. Its sodium-chloride thermal water is kept around 40°C (pH 7.3); the facility offers an indoor pool, a sauna and massage services.
Insider tip — Koriyama is Fukushima Prefecture's largest city and commercial hub, sitting at the crossroads of the Tohoku Shinkansen and the Ban-Etsu highways. The city became a symbol of Fukushima's broader recovery effort after the 2011 earthquake and nuclear crisis — rebuilding with remarkable speed and optimism. Yuyu Land (peaceful hot water land) is a large super sento serving the city's residents, offering artesian sodium-chloride waters as a daily respite. Urabandai's volcanic lakes and Aizu's samurai heritage lie just an hour west.