Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SiliceSodiumBicarbonates
Shiobara-Motoyu Onsen is one of the eleven spring areas of the Shiobara Onsenkyō resort cluster in Tochigi Prefecture, associated with the Yagan Railway station of Kamimiyori-Shiobara-Onsenguchi serving the Motoyu area, whose bicarbonate, silica-rich, and simple mineral waters provide a particularly versatile and skin-softening bathing experience within one of Japan's most historically significant hot spring resorts. Shiobara has been known as a therapeutic spring destination since the Heian period and was celebrated in the writings of the Meiji-era novelist Kodo Nomura, whose Shiobara Tajiro novel immortalized the village and its hot spring culture in Japanese literary memory. The silica-bearing water of Motoyu Onsen produces the smooth and silky bathing texture associated with beauty springs throughout Japan, complemented by the alkaline cleansing properties of the bicarbonate component to create a multifaceted therapeutic experience in the most historically prominent zone of the Shiobara resort complex.
Insider tip — Shiobara-Motoyu Onsen is considered the mother spring of the entire Shiobara resort complex, flowing with a smooth bicarbonate-silica water prized above all for its velvety texture on the skin. The silica content creates a distinctive satin-like finish after bathing, making it especially popular among beauty-conscious visitors. The main bathhouse occupies a riverside position where the sound of the Houki River provides a natural soundtrack. Autumn foliage along the valley gorge typically peaks in late October and is among the most celebrated in the Kanto region.