赤城温泉郷の各温泉
Gunma
Bicarbonate springSulfate springIron spring
The water here
Bicarbonate spring 炭酸水素塩泉
Smooth, slightly slippery water. Often nicknamed bihada-no-yu, the water for beautiful skin.
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.
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Japanese Wikipedia
Other towns in Gunma