
Photo: 663highland · CC BY 2.5 · Wikimedia Commons
Utoro Onsen is a hot spring town in Hokkaido, Japan. The water leaves the ground at 61°C, hot. Officially the water is classed as chloride spring and bicarbonate spring.
Salty water. The salt leaves a thin film on the skin, so you stay warm well after leaving the bath.
Smooth, slightly slippery water. Often nicknamed bihada-no-yu, the water for beautiful skin.
Figures from the town's Japanese Wikipedia article.
44.0791, 145.0092 — open the map
Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.