Lac de Serre-Poncon
The barrage the Serre-Ponçon is a reservoir 750 meters above sealevel. Behind it is Lac de Serre-Ponçon.
When you don't see the puzzle, please check whether your device can handle html5 or java. Read here why the puzzles look different and which problems there can be
When you don't see the puzzle, please check whether your device can handle html5 or java. Read here why the puzzles look different and which problems there can be