
Photo: Dokudami · CC BY-SA 4.0 · Wikimedia Commons
花樹海温泉 is a hot spring town in Kagawa, Japan. The water leaves the ground at 19°C, cool enough that the baths here are usually reheated. It measures pH 9 — strongly alkaline. Officially the water is classed as bicarbonate spring. 1 inns take visitors here.
Smooth, slightly slippery water. Often nicknamed bihada-no-yu, the water for beautiful skin.
Figures from the town's Japanese Wikipedia article.
34.3429, 134.0241 — open the map
Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.