360° panorama by Jose De Queiroz.
Click the image to open the interactive version.

Lai da Marmorera is a reservoir in the Grisons, Switzerland. It is part of the Parc Ela nature park. The lake with a surface area of 1.41 km2 formed after the completion of the Marmorera dam in 1954 when the old village of Marmorera was flooded.

http://www.360cities.net/image/lai-da-marmorera-in-autumn