
Photo: unknown · CC BY-SA 3.0 · Wikimedia Commons
Ōbuka Onsen is a hot spring town in Akita, Japan. Officially the water is classed as acidic spring. 1 inns take visitors here.
Strongly acidic, sometimes below pH 2. It stings on cuts and is not for long soaks.
Figures from the town's Japanese Wikipedia article.
39.8044, 140.7968 — open the map
Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.