• Sport

Hike to the Lac Cornu from the Planpraz cable car

The Lac Cornu is one of the most popular walking destinations. Fishing is possible in the lake. With its curious shape, it is nestled in a wild and quiet setting. Natural reserve of the Aiguille Rouges.

Sport Hike to the Lac Cornu from the Planpraz cable car Chamonix-Mont-Blanc


Departing from Chamonix-Mont-Blanc (74400)
Average length : 03h30
Total elevation gain : 633m
Vertical drop : 362m
Distance : 7km
Signed walking trail
Animals not allowed

From the top of the Planpraz gondola, go up towards the plateau that you cross, pass by the "Altitude 2000" restaurant and the chairlift station and go towards the arrival towers of the chairlifts and ski lifts. Leave on the left the paths going to the Brévent and the Col du Brévent: use the track leading to the Flégère. At about 200m, take the upper left path crossing large grassy slopes. Pass on a promontory, cross a large scree and cross a small gap. Then go up a rather steep slope by a few switchbacks leading to the Col Cornu. Going a little further, we can see below the Lac Cornu. Reach it by descending a path often covered with snow.
Return by the same route.

More information available at the Tourist Office or the High Mountain Office and in our trail guide.
Warning: Trail conditions are subject to change, so please check before you leave.

Way and back
Total elevation gain : 633m
Altitude max : 2414m
Vertical drop : 362m

Further informations

Rock, Stone

    1 1


    Free entry but transport fee applies. Ticket for the Planpraz cable car to be provided.

    Methods of payment accepted : Check, Cash, Bank/credit card


    Animals not allowed
    Languages spoken : French
    Not adapted to strollers

    Dogs are not allowed in the nature reserve

    Period of practice

    From 22/06 to 22/09.
    Depending the opening dates of the Planpraz cable car.

    Subject to favorable snow and weather conditions.

    • Restaurant
    • Accessible via ski lift
    • Car park
    • Covered car park
    • Pay car park
    • Public WC


    Départ de la télécabine de Planpraz 74400 Chamonix-Mont-Blanc
    Departing from : Chamonix-Mont-Blanc (74400)
    Latitude : 45.936024 - Longitude : 6.853158

    Departure from the summit of the Planpraz cablecar

    Information update on 30/05/2024 by Office de Tourisme de la Vallée de Chamonix-Mont-Blanc