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Kawakamikyo Onsen

Saga · 川上峡温泉

Kawakamikyo Onsen is a hot spring town in Saga, Japan. The water leaves the ground at 31.6°C, cool enough that the baths here are usually reheated. It measures pH 9.12 — strongly alkaline. Officially the water is classed as radioactive spring. Its sources put out around 140 litres a minute. 1 inns take visitors here.

Radioactive spring

The water here

Radioactive spring 放射能泉

Contains trace radon that leaves the water quickly. Also called radium or radon springs.

The numbers

Water temperature
31.6°C
pH
9.12 (strongly alkaline)
Discharge
140 litres a minute
Inns
1
Address in Japanese
佐賀県佐賀市大和町

Figures from the town's Japanese Wikipedia article.

Read more

Japanese Wikipedia

Other towns in Saga

Ureshino OnsenSaga · 嬉野温泉
Chloride springBicarbonate spring
Takeo OnsenSaga · 武雄温泉
Bicarbonate spring
Furuyu OnsenSaga · 古湯温泉
Simple spring
Kumanokawa OnsenSaga · 熊の川温泉
Radioactive spring
いろは島温泉Saga
Chloride springBicarbonate spring
太良温泉Saga
Simple spring
唐津温泉Saga
Chloride springSulfate spring
小城温泉Saga
Simple spring

Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.