
Photo: A301m089 · Public domain · Wikimedia Commons
三谷温泉 is a hot spring town in Aichi, Japan. The water leaves the ground at 35°C, comfortably warm. Officially the water is classed as chloride spring. 9 inns take visitors here.
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.
34.8071, 137.2562 — open the map
Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.