
Photo: 運動会プロテインパワー · CC BY-SA 4.0 · Wikimedia Commons
Sekigane Onsen is a hot spring town in Tottori, Japan. The water leaves the ground at 40–62°C, hot. Officially the water is classed as radioactive spring. Its sources put out around 337 litres a minute. 5 inns take visitors here. About 23,410 people a year come to bathe.
Contains trace radon that leaves the water quickly. Also called radium or radon springs.
Figures from the town's Japanese Wikipedia article.
35.3625, 133.7628 — open the map
Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.