Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Yokohama Tsurumi Onsen is a community thermal facility in Tsurumi Ward in northern Yokohama, a historically significant industrial and immigrant community where Kawasaki Steel and Toshiba's foundational factories were established in the early Meiji period and where significant Korean and other Asian immigrant communities have shaped a vibrant multicultural neighborhood culture documented in the ward's festivals, food culture, and the nearby Sojiji—one of the two head temples of the Soto Zen school of Japanese Buddhism, whose sprawling complex is a significant center of Japanese religious practice. The siliceous mineral waters provide daily wellness bathing for a densely populated working ward whose resident community connects Japanese, Korean, Filipino, and other Asian communities in an urban neighborhood of multicultural character and industrial heritage rarely encountered in Yokohama's more polished touristic circuits. The Sojiji's vast meditation halls, the traditional Korean market streets of Tsurumi, and the warm mineral waters give this onsen an authentic, community-rooted character embedded in one of Japan's most genuinely multicultural wards.