







Description
This lake is located in the crystalline massif of the Aiguilles Rouges, between Passy and Servoz. Accessible by foot only. Magnificent views of the Fiz mountain range. The lake and its island are nestled under the Pointe Noire de Pormenaz.
Altitude 1950 m.
Lake in the heart of the crystalline Pormenaz mountains. The relief is "moutonné", with hard, rounded granite rocks alternating with hollows: peat bogs and laouchets (small lakes) left by the glacier some 10,000 years ago. An impressive diversity of flora, including numerous rhododendrons in early summer.
Fishing :
1st category lake, nature reserve
Swimming prohibited.
Accessible on foot only. 2 1/2 hours walk from Plaine Joux.
Services
Animals accepted
- Activities
- Swimming is forbidden
- Services
- Pets welcome Lac de Pormenaz lies on the border of the Nature Reserve. To get there from Plaine Joux, you can either take the Chorde or the Argentières route. La Chorde is a fairly steep trail, equipped with numerous handrails and ladders. This trail is not a nature reserve, so dogs are allowed on a leash. The Argentières trail is less steep, but still has 2 handrails. However, this is a nature reserve, and dogs are not allowed.
Accessibility
Not accessible in a wheelchair
Rates
Free access.
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Openings
From 15 May 2026 until 15 November 2026 - Open everyday
Accessible depending on snow conditions. Contact the Passy tourist office to check accessibility conditions.
Location
Plan interactif : 1 lieux répertoriés.
- Lieu sans nom
Environment
Environment
- Close to GR footpath
- Isolated




