Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
BicarbonatesSodiumCalcium
Chomonkyo Onsen is located in the Chomonkyo Gorge near Mine City, Yamaguchi Prefecture, a nationally designated Special Scenic Area where the Abu River has carved a 12-kilometer limestone canyon featuring over 1,000 oddly shaped rocks, caves, natural bridges, and waterfalls that glow with autumn foliage each November. The siliceous thermal waters here are enjoyed in one of western Japan's most spectacular natural settings, with the gorge's dramatic rock formations created by ancient river erosion through the karst limestone of the Akiyoshi Plateau. Bathing at Chomonkyo Onsen with the canyon's seasonal beauty as a backdrop — cherry blossoms in spring, emerald green in summer, crimson maple in autumn — provides one of Yamaguchi's most scenic and memorable onsen experiences.
Insider tip — Chomonkyo Onsen sits at the entrance to a celebrated river gorge in Yamaguchi Prefecture, where the Abu River has carved dramatic rock formations through limestone and granite over millennia. The gorge is lined with Japanese maples that explode in crimson each autumn, making this one of western Honshu's premier fall foliage destinations. Bicarbonate spring water flows from the valley walls into small baths that allow bathers to hear the rapids below. The combination of vivid autumn color, canyon scenery, and skin-softening thermal water is extraordinarily rare.
