Photo: Nekosuki · CC BY-SA 4.0 · Wikimedia Commons
Kawayu onsen is a hot spring town in Wakayama, Japan. The water leaves the ground at 73°C, hot. Officially the water is classed as chloride spring and bicarbonate spring. 11 inns take visitors here with room for about 862 guests.
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.
33.8129, 135.7748 — open the map
Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.