Ikaho Open-Air Bath
Ikaho Open-Air Bath
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Ikaho Open-Air Bath


Last updated: December 21, 2020

A mineral-rich outdoor onsen fed directly from the source

Breathe cool mountain air while taking a dip in Ikaho Onsen’s open-air bath.

The bath is fed by water directly from the source, which emerges as a brownish-red, iron-rich water called “Kogane no Yu," meaning "golden water." This is one of two types of onsen water in the town, and it has also earned a reputation for purportedly helping boost women’s fertility by warming the body and improving blood circulation.

Basic Information


581 Yumoto, Ikaho, Ikahomachi, Shibukawa, Gunma ( Map)


About 25 minutes by bus from Shibukawa Station

About 20 minutes by car from Shibukawa-Ikaho IC of Kan-Etsu Expressway


9:00 a.m. to 6:30 p.m.


1st & 3rd Thursdays of the month


450 yen (200 yen for children)



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