In the first days of october i had a drive through the Alps to see à little lake i had heard about.
Once arrived, i discovered that the lake had just been emptied out because some work had to be done on the dam.
Disapointed, i had a look to the map and saw another lake not too far in Montriond.
This one was not empty but the water level was very low because of summer drieness and the surface looked like a field of green algae.