In the heart of Passy National Nature Reserve, the Lac de Pormenaz, overlooked by the imposing eponymous Pointe Noire and Rochers des Fiz, is a must-see summer outing. The route quickly leads to the Torrent du Souay to finally rise more frankly once arrived at La Chorde where cables and ladders will help pass a few difficulties. The Aravis Range and the Fiz Massif will appear as a permanent backdrop throughout the ascent. Swimming in the Lac de Pormenaz can be a refreshing break before the descent towards Argentières locality and the Chalets d’Ayères. For people prone to fear of heights, it is possible to avoid the passages with cables by leaving on the right the trail of La Chorde at the junction.