This lake is found near the Pormenaz Alpine pastures, a mountain site that overlooks Servoz and Passy not far from the Moede-Anterne refuge. Fishing is permitted in the lake.
Start out from the pretty fountain and take the route de la Côte to the first bend. Here a footpath goes off to the right towards the Gorges de la Diosaz and crosses the Torrent du Souay. Follow the path upwards, ignoring the paths to Tête de la Fontaine and La Bajulaz on your right. Carry on up a steep slope to a pyramidal marker to reach the Chalets de Pormenaz (1,925 m) — a three-hour hike.
The path now flattens out as you head over towards the Chalets de Chavanne-Neuve (15 minutes from the path) to Pointe Noire de Pormenaz: check out the special geological features here. Then carry on towards Lac de Pormenaz.
Alternatively, you can start from Moulins d’en-Haut 859 metres above
Servoz and join the path described above near the Torrent du Souay.
Others routes available from Servoz or Passy-Plaine Joux.
More information at the Tourist Office, the High Mountain Office, and in our hiking guide.
Careful: path conditions may change - remember to check the latest information before setting off.