Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Numazu, a port city at the mouth of the Kano River at the northern tip of Suruga Bay in Shizuoka Prefecture, is celebrated for its spectacular sunrise views of Mount Fuji reflected in the bay and for its role as Japan's most important landing port for deep-water seafood of the Suruga Trough, the deepest bay in the country. Numazu Onsen Shizuoka taps chloride-rich coastal thermal waters from the marine geological formations of Suruga Bay's edge, offering soothing maritime baths in a city whose fish market is famous for giant isopods, angler fish, and rare Pacific deep-sea species. The Numazu Deep Sea Aquarium housing live specimens from the 2,500-metre Suruga Trough, the historic Mishima Taisha shrine nearby, and the stunning Fuji coastal panorama from the Senbonhama pine forest make Numazu a uniquely compelling coastal spa destination in Shizuoka.