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mixed-gender onsen

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kuroya onsen

Kuroyu Onsen

Ultimate peace of mind plus mixed-gender bathing in this respite of seclusion.

The volcanic lake at Mount Kusatsu-Shirane.

Manza Onsen

Hiking in summer; skiing in winter; but the milky, acidic onsen is good year round.

Kabeyu Hot Spring

Oita’s secret mixed-gender onsen in a cave!