Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Yuasa Onsen is located in the Yuasa area of Hiroshima Prefecture, where chloride-rich thermal waters emerge in the western Chugoku region, providing mineral bathing within the broader geothermal tradition of a corner of western Japan facing the Seto Inland Sea and the island-dotted waters between Honshu and Shikoku. The sodium-chloride mineral composition of these hot springs is valued in the Japanese onsen tradition for its warming and skin-conditioning character and its association with well-being, drawing on the saline mineral quality that reflects the coastal geological heritage of Hiroshima Prefecture's western reaches. Hiroshima Prefecture—internationally associated with the August 1945 atomic bombing and the extraordinary recovery and peace advocacy that has shaped the city's identity for eight decades—frames this thermal destination within a prefecture that has transformed historical tragedy into a global message of reconciliation, resilience, and the restorative power of water, nature, and human community.