Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
BicarbonatesSodiumCalcium
Toida Onsen is situated in Yanai City, Yamaguchi Prefecture, a small city on the Seto Inland Sea coast celebrated as the birthplace of goldfish production in Japan — a fact commemorated in the city's many goldfish-themed artworks and the Yanai Goldfish Lantern Festival that illuminates the historic white-walled merchant district each August. The siliceous thermal waters here complement a coastal city whose charming Shirokabechi preserved merchant quarter recalls the prosperous trading culture of the Edo period. Bathing at Toida Onsen in this city of goldfish lanterns and white-walled architecture provides a uniquely local Yamaguchi wellness experience combining thermal renewal with one of Japan's most charming and culturally specific small-city traditions.
Insider tip — Toida Onsen is a small community bath in the Hiroshima hinterland, fed by a gentle bicarbonate spring that locals have used for generations. The Hiroshima Prefecture interior is largely rural and forested, and this spring sits among terraced farmland and small river valleys that see few tourists. The alkaline water leaves skin smooth and refreshed, and the unpretentious bathhouse atmosphere reflects authentic everyday Japanese thermal culture. The nearby Sandankyo Gorge, one of Hiroshima's scenic highlights, makes an excellent half-day companion trip.
