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恐山温泉
恐山温泉 is a hot spring town in Aomori, Japan. The water leaves the ground at 70–90°C, hot enough that it has to be cooled before anyone can get in. It measures pH 1.89–2.71 — strongly acidic, the kind that stings on a cut. Officially the water is classed as chloride spring, iron spring, acidic spring and sulfur spring. 1 inns take visitors here.
The water here
Chloride spring
Salty water. The salt leaves a thin film on the skin, so you stay warm well after leaving the bath.
Iron spring
Turns reddish brown as the iron meets air. The water is clear at the source.
Acidic spring
Strongly acidic, sometimes below pH 2. It stings on cuts and is not for long soaks.
Sulfur spring
The classic rotten-egg smell and milky white water. It can tarnish silver jewellery, so take it off.
The numbers
- Water temperature
- 70–90°C
- pH
- 1.89–2.71 (strongly acidic)
- Inns
- 1
- Address in Japanese
- 青森県むつ市大字田名部字宇曽利山
Figures from the town's Japanese Wikipedia article.
Where it is
41.3273, 141.0911 — open the map
Read more
Other towns in Aomori
Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.