
Photo: STA3816 · CC BY-SA 4.0 · Wikimedia Commons
Shimoda Onsen is a hot spring town in Kumamoto, Japan. The water leaves the ground at 51.3°C, hot. It measures pH 7.84 — mildly alkaline, the slippery kind. Officially the water is classed as chloride spring and bicarbonate spring. 12 inns take visitors here.
Salty water. The salt leaves a thin film on the skin, so you stay warm well after leaving the bath.
Smooth, slightly slippery water. Often nicknamed bihada-no-yu, the water for beautiful skin.
Figures from the town's Japanese Wikipedia article.
32.4250, 130.0117 — open the map
Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.