川原の湯っこ
A riverbed spring where you dig your own foot bath
Uses natural hot spring water
Shower, wash stations, soap and shampoo provided
A natural riverbed with no showers or soap.
On-site or nearby parking available
Hot water wells up through the gravel of the Yakunai river in the Akinomiya onsen area. There is no built bath: you dig your own foot pool in the riverbed with a shovel and soak your feet. It is a natural riverbed, so there are no showers, no changing screens and no soap. Usable roughly from May to November, depending on snowfall and melt.
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Last updated October 13, 2026