Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Soft water — natural, classic buoyancy.
Nakatomi Onsen is located in Minamimaki Village, Nagano Prefecture, in the Yatsugatehara highland plateau at the base of the Yatsugatake volcanic range — a dramatic multi-peaked volcanic massif separating Nagano from Yamanashi Prefecture, whose high-altitude meadows, wild bird sanctuaries, and pristine alpine streams are designated as a Special Nature Reserve. The siliceous thermal waters here serve a highland community in one of Nagano's most scenically beautiful and ecologically protected volcanic landscapes, where the Yatsugatake peaks provide both a dramatic visual backdrop and a rich natural environment for hiking, birdwatching, and botanical exploration. Bathing at Nakatomi Onsen amid the Yatsugatake volcanic plateau offers a meditative connection to the geothermal forces that continue to shape this ancient volcanic range, combining the thermal mineral waters of Nagano with one of Japan's most dramatically beautiful highland landscapes.