
Photo: photo: Qurren (talk) Taken with Canon PowerShot G9 X · CC BY-SA 4.0 · Wikimedia Commons
Kawarayu Onsen is a hot spring town in Gunma, Japan. The water leaves the ground at 79.3°C, hot. Officially the water is classed as chloride spring, sulfate spring and sulfur spring. 6 inns take visitors here.
Salty water. The salt leaves a thin film on the skin, so you stay warm well after leaving the bath.
Clear water with a faintly bitter taste. Known for holding heat.
The classic rotten-egg smell and milky white water. It can tarnish silver jewellery, so take it off.
Figures from the town's Japanese Wikipedia article.
36.5476, 138.7003 — open the map
Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.