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Akayu Onsen

Niigata · 赤湯温泉

Akayu Onsen is a hot spring town in Niigata, Japan. The water leaves the ground at 41–51°C, hot. It measures pH 6.5 — close to neutral. Officially the water is classed as chloride spring. Its sources put out around 3 litres a minute. 1 inns take visitors here.

Chloride spring

The water here

Chloride spring 塩化物泉

Salty water. The salt leaves a thin film on the skin, so you stay warm well after leaving the bath.

The numbers

Water temperature
41–51°C
pH
6.5 (close to neutral)
Discharge
3 litres a minute
Inns
1
Address in Japanese
新潟県南魚沼郡湯沢町三国

Figures from the town's Japanese Wikipedia article.

Where it is

36.8142, 138.7217 — open the map

Read more

Japanese Wikipedia

Other towns in Niigata

Tsukioka OnsenNiigata · 月岡温泉
Chloride springSulfate springSulfur spring
Iwamuro OnsenNiigata · 岩室温泉
Chloride springSulfur spring
Matsunoyama OnsenNiigata · 松之山温泉
Chloride spring
Senami OnsenNiigata · 瀬波温泉
Chloride spring
Akakura OnsenNiigata · 赤倉温泉
Bicarbonate springSulfate spring
Echigo Yuzawa OnsenNiigata · 越後湯沢温泉
Chloride springSulfur spring
Tsubame OnsenNiigata · 燕温泉
Chloride springBicarbonate springSulfate springSulfur spring
咲花温泉Niigata
Chloride springSulfate springSulfur spring

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