Photo: Fukufuku1 · CC BY-SA 3.0 · Wikimedia Commons

八幡温泉郷

Okayama

八幡温泉郷 is a hot spring town in Okayama, Japan. The water leaves the ground at 27°C, cool enough that the baths here are usually reheated. It measures pH 8.6 — mildly alkaline, the slippery kind. Officially the water is classed as simple spring. Its sources put out around 4,170 litres a minute.

Simple spring

The water here

Simple spring 単純温泉

Mild and low in dissolved minerals. Usually clear and gentle on the skin, which is why these baths are often recommended for first-timers.

The numbers

Water temperature: 27°C
pH: 8.6 (mildly alkaline)
Discharge: 4,170 litres a minute
Address in Japanese: 岡山県岡山市北区建部町建部上 {{Location map many | Japan Okayama Prefecture | relief = 1 | cap

Figures from the town's Japanese Wikipedia article.

Japanese Wikipedia