Kami-Suwa Onsen
Nagano · 上諏訪温泉
Sulfur spring
The water here
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
36.0424, 138.1057 — open the map
Read more
Japanese Wikipedia
Other towns in Nagano