Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Yui Onsen Shimizu is a traditional hot spring facility in the Yui district of Shimizu Ward, Shizuoka City, Japan, a historically significant coastal settlement on Suruga Bay that served as a post town on the ancient Tōkaidō highway and is today famous for its spectacular Satta Pass viewpoint — one of Japan's most painted landscapes, featuring the sea route curving beneath steep cliffs with Mount Fuji framed magnificently in the background. The naturally chloride-sodium spring waters carry the warming, saline mineral character of Suruga Bay's coastal geothermal zone, valued for their deeply relaxing and skin-softening properties after walks on the historic Tōkaidō trail sections. Soaking in Yui's coastal hot springs while contemplating one of Japan's most iconic Fuji viewpoints above the ancient highway route provides an extraordinarily evocative convergence of historical and natural beauty.