Utanhama Onsen

ウタン浜温泉うたんはまおんせん

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Wild Onsen
Kyushu & Okinawa·Kagoshima

Bathing & Water

OnsenYes

Uses natural hot spring water

Capabilities

Mixed BathingYes

Shared bathing area for all genders

About

A wild coastal hot spring on Satsuma Iojima (硫黄島), accessible only by scrambling down mossy cliffs to the shoreline. The spring wells up among whitish rocks at the water's edge, with the surrounding stones turning red when wet. Timing matters here, low tide is essential for a decent soak, and the path involves real bushwhacking.

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