Beautiful lake above the hamlet of Les Cours, near Villar d'Arêne.
You can get closer by car, but the walk starting from Les Cours hamlet, across the fields by the small road, is very beautiful and you may be able to see marmots.
Fishing site

A 45 minutes walk from the hamlet of Les Cours, 20 minutes from the first parking and 15 minutes from the second parking
Stunning views of the mountain Les Agneaux, the massive of La Meije and its glacier and the valley below
Trailer snack to restore yourself by the water side