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Tokachidake Onsen

Hokkaido · 十勝岳温泉

Tokachidake Onsen is a hot spring town in Hokkaido, Japan. The water leaves the ground at 29–53°C, hot. It measures pH 2.4 — strongly acidic, the kind that stings on a cut. Officially the water is classed as sulfate spring, iron spring and acidic spring. 3 inns take visitors here.

The water here

Sulfate spring 硫酸塩泉

Clear water with a faintly bitter taste. Known for holding heat.

Iron spring 含鉄泉

Turns reddish brown as the iron meets air. The water is clear at the source.

Acidic spring 酸性泉

Strongly acidic, sometimes below pH 2. It stings on cuts and is not for long soaks.

The numbers

Water temperature

29–53°C

pH

2.4 (strongly acidic)

Inns

3

Address in Japanese

北海道空知郡上富良野町十勝岳温泉

Figures from the town's Japanese Wikipedia article.

Where it is

43.4136, 142.6428 — open the map

Read more

Japanese Wikipedia

Other towns in Hokkaido