
梅ヶ島コンヤ温泉 is a hot spring town in Shizuoka, Japan. The water leaves the ground at 31.7°C, cool enough that the baths here are usually reheated. It measures pH 10.3 — strongly alkaline. Officially the water is classed as sulfur spring. Its sources put out around 174 litres a minute. 4 inns take visitors here with room for about 90 guests.
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.
35.2655, 138.3211 — open the map
Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.