
Photo: おにく · CC0 · Wikimedia Commons
柴原温泉 is a hot spring town in Saitama, Japan. The water leaves the ground at 9–11°C, cool enough that the baths here are usually reheated. It measures pH 8.1 — mildly alkaline, the slippery kind. Officially the water is classed as sulfur spring. Its sources put out around 2 litres a minute. 2 inns take visitors here.
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.
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