The lift system saves you time and effort, meaning that you can spend more of your day enjoying the tranquility and beauty of this remote spot.
Planpraz to Lac Cornu, Chamonix - Le Brévent
A half-day hike up to a high altitude mountain lake that is rewarding and challenging
Starting from Planpraz at Brévent, turn left out of the lift station and follow the wide path past the Altitude 2000 restaurant (closed in summer). On a good calm day you’ll see parapenters taking off from the grassy field on your left.
Continue up towards the chairlift pylons and bear right towards Flégère; after a couple of hundred metres you’ll come to a footpath on your left that climbs uphill through open fields before reaching a scree slope. Scramble across the scree (it’s not too steep or challenging) and pass through a narrow gap.
The trail becomes steeper as it approaches Col Cornu and you pass between the impressive peaks of Aiguille de Charlanon on your left and Aiguille Pourrie on your right; once you’ve reached the summit of the col at 2,414m the trail drops down to the lake.
The lake itself is surrounded by rocks that make good picnic tables and the occasional grassy patch. The rocks make for quite eerie acoustics and you can often hear the cawing of birds or bleating of goats, magnified and distorted from their usual sounds. The views are spectacular and you get a completely different perspective by being on the other side of the mountain.
You can either return via the same route, or make a circuit of it by descending to Flégère and taking the cable car down to Les Praz, from where you can catch the bus back to Chamonix or walk alongside the river.
What to bring
This hike is very exposed with no shade or shelter so check the weather and be prepared with suncream, sunglasses, hat, spare layers of clothing, etc. High altitude can bring on dehydration so make sure you have plenty to drink.
The ground is rocky (and sometimes snowy) underfoot, so wear decent hiking shoes and consider using poles.
A map is not essential as the route is signposted but it is always useful to have one for reference - the map that covers this area is IGN 3630OT.
What to see
It's common to see alpine wildlife in this area such as chamois and bouquetin. Marmots live amongst the rocks, so keep an eye out for them once you get higher up.
Sights in Chamonix
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Le Brévent, Chamonix - Town
South-facing mountain with amazing views of the Mont Blanc massif which sits across the valley
Brévent is the closest summer lift to the centre of Chamonix and its impressive rocky summit rises to 2,525m above sea level.
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Crystal museum
Musée des Cristaux has a collection of minerals and crystals collected in the valley
Discover the minerals from the Mont Blanc Valley, famous throughout the world, and learn more about the art of mountaineering.
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Maison de la Memoire et du Patrimoine, Chamonix- Centre
A modern museum dedicated to the history of Chamonix located on its oldest street
This museum houses exhibits of Chamonix's past.
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Alpine museum
Musée Alpin de Chamonix currently closed for renovations, planned reopening: June 2026
The museum is currently closed for renovations
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Municipal library
Public library and exhibitions in central Chamonix with great kids section
The main central library for Chamonix which houses the occasional exhibition and lectures.
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Mer de Glace and Montenvers cog railway
Everything you need to know about a visit to this iconic glacier and railway
No trip to Chamonix should be complete without a visit to the legendary Mer de Glace, the longest and arguably the most impressive glacier in the Chamonix valley. It is also the largest glacier in France.
Where to lunch
The Bergerie at Planpraz serves lunches, snacks and drinks throughout the summer; they have a lovely sunny terrace with great views. Lac Cornu is a great place for a picnic if you prefer to bring your own food.
Restaurants in Chamonix
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Le Mayen Restaurant
Traditional alpine cuisine served in a restaurant next to the Savoy nursery ski area
Situated in La Folie Douce Hotel, it's the perfect place for traditional alpine cuisine with a modern twist.
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Pointe Isabelle Bar and Bistro Restaurant
Central hotel with a stylish restaurant and bar popular with locals and holidaymakers alike
This tastefully refurbished restaurant and bar are right in the heart of Chamonix on the popular Avenue Michel Croz, close to the train station.
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Bighorn Bistro Restaurant
American cuisine, craft beers, cocktails, and homemade baked goods
Bighorn Bistro in Chamonix Sud is known for its homemade American-style comfort food, from stacked burgers to freshly baked desserts. You can pair your meal with a craft beer or one of their creative cocktails. With friendly service and a laid-back atmosphere, it’s a favourite with both locals and visitors, offering generous portions, warm hospitality, and a menu that consistently delivers hearty, satisfying flavours after a day on the mountain or during a relaxed evening out.
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The Dainty Pizza Restaurant
Good value sourdough pizza in the Neapolitan tradition, take away or delivered
Using high-quality ingredients and traditional methods, these pizzas are made with a sourdough crust prepared from mother yeast, two flours, sea salt, water and extra virgin olive oil, then left to rise for at least 72 hours for light, easy digestion. They use San Marzano and Yellow Datterini tomatoes and the freshest fior di latte mozzarella. With sustainability in mind, only a couple of organic meat options are offered, keeping the menu thoughtful and delicious.
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La Petite Cuisine Restaurant
Family-style restaurant ideally located next to the Savoy nursery ski area
Situated in La Folie Douce Hotel, enjoy a delicious meal after a morning on the slopes with family or friends.
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Big Mountain Basecamp Bar & Restaurant
Local craft beer, artisan pizzas and epic mountain views in the heart of Chamonix
Whether you’re hungry or thirsty after a day in the mountains, Big Mountain Basecamp has you covered. Come for fresh craft beer, a relaxed restaurant atmosphere, an on-site micro-brewery, a large sunny terrace, shady beer garden and a take-out beer shop.
What to do
Things To Do in Chamonix
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Cinema VOX
English films and digital 3D equipped
Chamonix's own Cinema VOX is situated right in the centre of town, slightly tucked back on the Place Balmat (main square in the centre). There are three recently refurbished screens equipped with digital 3D projectors show the latest French and International films, as well as a number of premieres and specialist mountain-sports films.
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Photography workshop - "L'Art du Regard"
Inspiring half-day in nature, led by an award-winning photographer
Join an award-winning photographer for a half-day course focused on improving your observation, exploring light, and developing your photographic eye. This workshop is suitable for all levels, ages, and equipment types.
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Tandem Paragliding
Soar above the Alps: tandem paragliding adventures for every age and skill level
Discover the unforgettable sensation of flying high above the Chamonix-Mont-Blanc valley on a tandem paragliding adventure. Whether it’s your first time in the air or you’re craving an adrenaline-fuelled experience, each flight is designed to showcase the Alps from their most spectacular angle.
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Tandem paragliding
Enjoy the trip of a lifetime with these qualified tandem paragliding specialists - All year round
This company's sole activity is tandem paragliding, so they are 100 % focused on you and your flight. Their fully qualified pilots have vast experience and have done 1,000s of flight in the Chamonix Valley.
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Guided snowshoeing
Half day or full day private guided snowshoeing walks
Off-piste snowshoe outings where you can discover the charm and serenity of the Chamonix Valley on foot.
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Guided off-piste Vallée Blanche
Experience a guided off-piste ski or snowboard adventure on the Vallée Blanche
Chamonix Mont Blanc Guides specialise in high mountain guiding, skiing and alpinism. Based in the Chamonix Valley, at the foot of the Mont Blanc range, they have all the experience and expertise to make your dream adventure become a reality.
Directions
The Planpraz-Brévent gondola is at the top of Rue des Mollards, the road that goes up the hill behind the tourist office. You can walk there from the centre of Chamonix in under 10 minutes, or you can drive up and leave your car in the paid parking lot.
