• Sport

Lac de Lessy by Paradis

Savoie Mont Blanc's choice

The Lac de Lessy, around which marmots and ibex make their home, is a stunning site at an altitude of 1733 m in the village of Le Petit-Bornand Glières-Val-de-Borne. It is one of the most beautiful walks in the Bornes-Aravis area.

Sport Lac de Lessy by Paradis Glières-Val-de-Borne


Departing from Glières-Val-de-Borne (74130)
Average length : 04h00
Total elevation gain : 600m
Vertical drop : 600m
Distance : 11km
Signed walking trail
Animals allowed

Departure: Pteret car park, Montagne de Paradis
Difficulty: average
Period: from May to October

Views: Panoramic views from Pteret over the Arve valley and the Geneva basin.
View of the Col de la Forclaz and the Col de la Buffaz

Access: From the Mairie of Le Petit-Bornand, take the Puze road towards Paradis, then follow signs to Paradis.
Park your car at the Pteret car park (ledge next to the chalets).

At the car park, take the path in the direction of "Lac de Lessy" and follow the track through the forest. Just in front of the Chalet du Lainvouet (last chalet), turn left in the direction of Lac de Lessy, then walk over the area of rocks. The path continues until it reaches a little valley of fallen rocks. The path crosses this and takes you to a section that is a little more difficult, from where you can use the ladder to reach the crest that overlooks the Mayse valley.
Continue straight on along the mountainside towards the Col de la Forclaz from where you can spot the Lac de Lessy.
Walk down to the chalets and the Lessy refuge.

You can walk round the Lac de Lessy.

Your return is by the same path.

Herding dogs are present in the vicinity of the lake from the beginning of July to the end of September, they must be approached with great caution and certain instructions must be respected (see video link for explanation). Dogs must be kept on a lead.

You can download the route map for this hike!

Way and back
Total elevation gain : 600m
Altitude max : 1844m
Vertical drop : 600m


Departmental, painting, wood

Difficult passages

Stones to avoid in wet weather, risk of falling stones, be careful

Map references

IGN : 3430 ET

Topoguides references

Hiking guide published by Faucigny Glières tourist office

    1 3

    1/ From "Paradis (Parking)" follow the direction of "Lac de Lessy (Refuge)" on the path at the end of the parking. 2/ At the intersections " Lachat ", " Lainvouet ", " Rocher de Salin " and " Lainvouet Lainvouet", "Rocher de Salin" then "Col de la Forclaz", always follow the direction of "Lac de Lessy (Refuge)". 3/ When you arrive at " Lac de Lessy (Refuge) ", go back to the starting point by the same itinerary as the first one.

    Swimming is forbidden in the lake of Lessy.


    Free access.


    Animals allowed

    Swimming at Lake Lessy is strictly forbidden! An altitude lake has a very fragile ecosystem that should not be disturbed.

    • Pets welcome
    • Car park


    Parking Paradis Le Petit-Bornand-les-Glières 74130 Glières-Val-de-Borne
    Departing from : Glières-Val-de-Borne (74130)
    Latitude : 45.99322 - Longitude : 6.415436

    More informations

    Information update on 14/05/2024 by Office de Tourisme Faucigny Glières