Le Pas du Roc

This remarkable aerial passage, carved out of the rock, crosses an impressive limestone bar.
In the pre-industrial era, a "glassworks" at the bottom of the valley, which consumed a lot of wood, exhausted the valley's forests and had to draw its energy from the steep mountain slopes.
So, around 1830, a passage was cut through the wall that defended the vast Champ Laitier forests.
After an hour and a half's walk, you'll be amazed to discover the Champ Laitier pastures and their rich flora.
From here, you can continue on to Sous-Dine (2004 m) and enjoy a privileged view of the Jura mountains and nearby Switzerland with Lake Geneva.
You can also reach Glières via Les Frêtes.