Kushima Onsen is a hot spring town in Miyazaki, Japan. The water leaves the ground at 39.3°C, comfortably warm. It measures pH 8.4 — mildly alkaline, the slippery kind. Officially the water is classed as bicarbonate spring. Its sources put out around 338 litres a minute.
Smooth, slightly slippery water. Often nicknamed bihada-no-yu, the water for beautiful skin.
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From Wikimedia Commons. Tap a photo for the photographer and licence.
With tattoos
Many public baths still turn away visible tattoos, and the rule is set by each bath, not by the town. The reliable way round it is to bathe privately: a room with its own open-air bath, or an inn with a private bath you can book for yourselves.