
Photo: オータムスネイク at Japanese Wikipedia · Public domain · Wikimedia Commons
一宮温泉 is a hot spring town in Hyogo, Japan. The water leaves the ground at 32.2°C, cool enough that the baths here are usually reheated. Officially the water is classed as chloride spring. Its sources put out around 143 litres a minute.
Salty water. The salt leaves a thin film on the skin, so you stay warm well after leaving the bath.
Figures from the town's Japanese Wikipedia article.
35.1838, 134.6293 — open the map
Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.