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Lake: Lac de Pormenaz
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.
Technical Information
Altimetric profile
Date and time
- From 15/05/2026 to 15/11/2026
- From 15/05/2027 to 15/11/2027
Additional information
Price(s)
Free access.
Updated by
Office de Tourisme de Passy - 20/02/2026
www.passy-mont-blanc.com/
Report a problem
Open period
From 15/05 to 15/11 daily. Accessible depending on snow conditions. Contact the Passy tourist office to check accessibility conditions.
Contact
Phone : 04 50 58 80 52
Email : info@passy-mont-blanc.com
Website : https://www.passy-mont-blanc.com/
Reception complements
Accessible on foot only. 2 1/2 hours walk from Plaine Joux.
Animals
Yes. 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.
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