Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Kawagoe Yuyuspa in Kawagoe, Saitama prefecture, draws bicarbonate-chloride thermal waters in the 'Little Edo' city north of Tokyo — Kawagoe's extraordinarily preserved Edo-period kura (storehouse) district, with its iconic bell tower and confectionery-shop alleys unchanged since the 18th century, attracts more visitors than many Japanese prefectural capitals. The thermal spa provides metropolitan Tokyo-area residents with convenient geothermal wellness in a historic city whose candy-shop street (Kashiya Yokocho), the remarkable Hikawa Shrine with its thousand-year anniversary traditions, and the covered shopping arcades of kurazukuri townhouses create one of the Kanto region's most complete historic townscape experiences outside Kyoto. The bicarbonate-chloride spring waters flow through both traditional communal baths and contemporary wellness facilities, bridging Kawagoe's Edo heritage with modern therapeutic approaches in a city that successfully integrates historical preservation with contemporary life.