
Photo: イーゴス108 · CC BY-SA 3.0 · Wikimedia Commons
Ogoto Onsen is a hot spring town in Shiga, Japan. The water leaves the ground at 30°C, cool enough that the baths here are usually reheated. It measures pH 8.58 — mildly alkaline, the slippery kind. Officially the water is classed as simple spring. 9 inns take visitors here. About 489,487 people a year come to bathe.
Mild and low in dissolved minerals. Usually clear and gentle on the skin, which is why these baths are often recommended for first-timers.
Figures from the town's Japanese Wikipedia article.
35.0888, 135.8941 — open the map
Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.