Koppenwinkel

Koppenwinkel  is a small, clear lake, fed by water rising from the ground sources.

The unsuaul thing about it is that it gets filled with water only in spring. In winter there is no water in it.
Koppenwinkel is a  "Glücksplatz"- it was classified as one of the Places of Happiness in Salzkammergut.

It takes about 30 minutes to walk there from the center of Obertraun (the supermarket), or 10 minutes by bike .