Ryuzaki Onsen Chidori is a day-use hot spring facility located on the southern coast of Suo-Oshima (Yashiro Island), a Seto Inland Sea island in Oshima District, Yamaguchi Prefecture. Often called the 'Hawaii of the Seto Inland Sea' for its mild climate, the island is reached via the Oshima Bridge, giving visitors an island getaway atmosphere. Formerly known as 'Shiokaze-no-yu' (Salty Wind Bath), it has long been beloved by locals. Its greatest feature is its unusual sepia-colored water, regarded as one of the finest in the Chugoku region and rare nationwide. The water is classified as a weakly radioactive sodium-magnesium-calcium chloride strong saline spring, an unusually rich blend. With a source temperature of 17-25 degrees Celsius, the spring is gently heated before serving. Bathers benefit from both the warmth-retaining qualities of strong saline waters and the therapeutic effects of radioactive springs. From the open-air bath and main bath, guests enjoy panoramic views of tranquil Angesho Bay and Mount Daisen (Dakesan, 618m), affectionately known as 'Oshima Fuji,' offering a perfect setting to savor the relaxed pace of Seto Inland Sea island life.