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Shiobara-Motoyu Onsen

Nasushiobara, Tochigi, Japan
Shiobara-Motoyu Onsen
Location
Nasushiobara, Tochigi, Japan
Water type
bicarbonate, silica
Temperature
41 °C
pH
8

Water profile

Thermicity
Sedative
41 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Restorative
LowHigh

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.
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Frequently asked questions

How hot is the water?
The water runs quite hot here, around 41 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features bicarbonate & silica water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).