Nakanoyu Onsen
Nagano · 中の湯温泉
Iron springSulfur spring
The water here
Iron spring 含鉄泉
Turns reddish brown as the iron meets air. The water is clear at the source.
Sulfur spring 硫黄泉
The classic rotten-egg smell and milky white water. It can tarnish silver jewellery, so take it off.
Where it is
36.2053, 137.6006 — open the map
Read more
Japanese Wikipedia
Other towns in Nagano