Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
High buoyancy
LowHigh
Mineralised water — eases movement and joints.
CO2BicarbonatesMagnésium
Kirinzan Onsen stands on the left bank of the Aganogawa River in Aga-machi, Niigata, its bicarbonate-carbonated waters carrying the effervescent character that gives bathing a lively, skin-refreshing quality prized in Japanese therapeutic practice. Historically known as Yunuura Onsen, this spring has served bathers since before the Edo period, making it one of the older documented thermal resorts in the region with roots stretching back centuries. The nearby Kirinzan—Kirin Mountain—lends the spring its current name; the mythical kirin of Japanese legend symbolizes good fortune, an auspicious sign for those seeking renewal.
Insider tip — Kirinzan Onsen in the Niigata highlands lies beneath Mount Kirin along the Agano river, in a region famous for the Kirinzan sake brewery that takes its name from the mountain. The carbonated bicarbonate springs serve a landscape of forested river gorges in the Aga region near the Fukushima border, where the Agano river carves through the Echigo mountains, and where the combination of sake heritage, deep snow, and beautiful river scenery defines one of Niigata's most distinctive areas.
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