Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Miyahama Onsen is a hot spring resort in Aki City, Kochi Prefecture on Shikoku Island, more precisely in the coastal zone of Hiroshima Prefecture's Aki area near the Seto Inland Sea, whose iodine-bearing mineral waters provide relaxing bathing within a long thermal tradition to the coastal community of this scenic Hiroshima Prefecture location. Hiroshima Prefecture, whose name is associated internationally with the devastating atomic bombing of August 1945, has rebuilt itself as one of Japan's most visited prefectures, home to the Hiroshima Peace Memorial Park and Museum, the floating torii gate of the Itsukushima Shrine on Miyajima Island designated as a UNESCO World Heritage Site, and the Saijo sake brewing district. The iodine-rich mineral waters of Miyahama Onsen provide a coastal hot spring experience within the broader cultural and scenic heritage of Hiroshima Prefecture, whose Seto Inland Sea location, island landscapes, and legacy of peace and reconstruction make it one of the most historically and humanly significant destinations in Japan.