Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Miura Onsen is a restorative hot spring at the southern tip of the Miura Peninsula in Miura city, Kanagawa Prefecture, a maritime city celebrated throughout Japan for the exceptional quality of its maguro (bluefin tuna) caught in Pacific waters and the famous Miura daikon radishes cultivated in its fertile farmland. The chloride-laden thermal waters are warming and skin-beneficial, providing an ideal post-fishing or post-hiking relaxation in a city whose coastal character is defined by the meeting of Tokyo Bay and Sagami Bay. The open Pacific views and the rugged, cave-dotted coastline of the Miura Peninsula's southern shores give the onsen a genuinely seaside character absent from the more urbanized spas of metropolitan Kanagawa.
Insider tip — At the tip of the Miura Peninsula where Tokyo Bay meets the open Pacific, Miura Onsen taps sodium-chloride thermal water that carries the warmth and mineral richness of the coastal sedimentary layers. The surrounding tuna-fishing heritage of Miura city gives the destination a grounded, working-port character distinct from tourist-polished Kamakura nearby. The outdoor jetty views at dusk are memorable.