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Routes
Hiking trails & Routes
France
Auvergne Rhône Alpes
Bonneville
Chamonix-Mont-Blanc

Lac Blanc and Lacs des Chéserys Loop

Hard

4.9

(131)

1,587

hikers

Lac Blanc and Lacs des Chéserys Loop

07:54

16.6km

1,180m

Hiking

Hike the difficult 10.3-mile Lac Blanc and Lacs des Chéserys Loop for incredible views of the Mont Blanc massif and stunning alpine lakes.

Last updated: February 26, 2026

Tips

Includes a segment that may be dangerous

A part of this route comprises technical, difficult, or hazardous terrain. Specialist equipment and prior experience may be required.

After 12.3 km for 55 m

Waypoints

A

Start point

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1

1.33 km

Lac de la Flégère

Highlight • Lake

It is a small alpine lake, in which the Mont-Blanc massif is reflected. A real postcard landscape!

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2

3.37 km

Lac Blanc

Highlight • Lake

This is the classic view of Mont Blanc with Lac Blanc in the foreground - not to be missed. I advise you to avoid being there in the middle of the day in summer. It is in the early morning and at the end of the day that you will find the most beautiful light and the greatest calm. The golden colors in autumn are beautiful.

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3

3.49 km

Lac Blanc Refuge

Highlight • Mountain Hut

It's hard to do better than at the Lac Blanc mountain hut! The spot is absolutely beautiful. Add to that regional dishes and a welcoming staff. It is possible to eat at the refuge during the day and to spend the night there with half board.

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4

4.11 km

Lacs des Chéserys

Highlight • Lake

The Chéserys lakes form a group of small alpine lakes that offer an absolutely incredible panorama of the Mont-Blanc massif.

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5

8.24 km

View of the Tour Glacier

Highlight • Viewpoint

Here, the panorama is simply exceptional. In front of you, the Tour glacier, but also the high peaks that mark the border between France and Switzerland.

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6

8.94 km

Montets Pass

Highlight • Mountain Pass

It is an alpine pass located at an altitude of 1461 meters. It is reached by a nice climb in the heart of the Aiguilles Rouges national park, followed by a nice descent to the Swiss border.

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7

12.1 km

Aiguillette d'Argentière

Highlight • Climb

The aiguillette d'Argentière amazes with its rather unique look. It is a fairly famous climbing spot.

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8

12.2 km

The Chésérys ladders

Highlight • Climb

Here is a slightly technical passage, equipped with ladders and handrails. Really nice !

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9

14.1 km

Belvedere

Highlight • Viewpoint

Here, we have a superb panorama of Mont Blanc and its chain of summits. We take full eyes! With a little luck, we even come across a few ibex.

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B

16.6 km

End point

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Way Types & Surfaces

Way Types

13.9 km

1.44 km

1.21 km

< 100 m

< 100 m

Surfaces

14.7 km

949 m

524 m

319 m

< 100 m

< 100 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (2,350 m)

Lowest point (1,420 m)

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Weather

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Friday 8 May

16°C

4°C

0 %

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Max wind speed: 3.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What is the terrain like on the Lac Blanc and Lacs des Chéserys Loop?

The terrain is varied and can be challenging. You'll encounter steep uphill climbs, rocky paths, and large boulders. Some sections, particularly between Lac Blanc and Lacs des Chéserys, feature metal ladders. The descent can be steep but often has carved steps and logs. Early in the summer, snowfields might still be present, making some parts slippery.

Where does the trail start and how do I access it?

A popular starting point for a moderate version of the loop is the Flégère gondola. Other routes can begin from Col des Montets or Argentière/Trélechamp, which tend to be steeper. Using cable cars or chairlifts, like the Flégère gondola or L'Index chairlift, can significantly reduce the elevation gain on foot, making the trail more accessible.

When is the best time of year to hike this loop?

The best time to hike the Lac Blanc and Lacs des Chéserys Loop is typically from July through mid-September. This period generally offers the most favorable conditions, as snowfields from the previous winter have usually melted, and the weather is more stable. Hiking outside of this window, especially in early summer, may involve traversing snow.

Are dogs allowed on the Lac Blanc and Lacs des Chéserys Loop?

No, dogs are generally not allowed on this route. The trail is located within the Réserve Naturelle des Aiguilles Rouges, a protected nature reserve, which has specific regulations regarding pets to protect local wildlife and the pristine alpine environment.

Are there any permits or fees required to hike in the Réserve Naturelle des Aiguilles Rouges?

There are generally no specific permits or entrance fees required for hiking the Lac Blanc and Lacs des Chéserys Loop within the Réserve Naturelle des Aiguilles Rouges. However, it is a protected area, so visitors must adhere to regulations such as staying on marked paths, not disturbing wildlife, and respecting prohibitions on dogs and drone use.

What are the main points of interest and views along the route?

The loop offers breathtaking panoramic views of the entire Mont Blanc massif. Key highlights include the vibrant blue waters of Lac Blanc, often reflecting the snowy peaks, and the equally stunning Lacs des Chéserys. You'll also pass by Lac de la Flégère and enjoy a View of the Tour Glacier. Keep an eye out for wildlife like ibexes.

Does the Lac Blanc and Lacs des Chéserys Loop connect with other well-known trails?

Yes, the route intersects with several other notable paths. Significant portions of the loop overlap with the Tour du Mont Blanc - Itinéraire principal and sections of the TMB CCW Alt Stage 10.2 La Tête aux Vents – Lac Blanc – Refuge La Flégère. You'll also find smaller sections that are part of the Grand Balcon Sud and the Sentier Botanique.

Is there accommodation or food available on the trail?

Yes, there is a mountain hut, the Lac Blanc Refuge, located near Lac Blanc. It offers accommodation and food, making it a great base for those wishing to experience sunrise or sunset views over Mont Blanc. Bivouacking is also an option near Lacs des Chéserys, but be sure to check local regulations.

How can I avoid crowds on this popular hike?

The Lac Blanc and Lacs des Chéserys Loop is very popular, especially during peak season. To avoid crowds and enjoy a more tranquil experience, it's highly recommended to start your hike early in the morning. Alternatively, consider staying overnight at the Lac Blanc Refuge or bivouacking near Lacs des Chéserys to enjoy the views before or after the main crowds arrive.

Are there any sections with ladders or chains on the trail?

Yes, there are sections with metal ladders, notably between Lac Blanc and Lacs des Chéserys, often referred to as The Chésérys ladders. While generally not overly exposed, hikers with a fear of heights or those carrying large packs might find these parts challenging. Some routes, particularly from Argentière or Trélechamp, also include technical sections with climbing steel ladders.

Is the Lac Blanc and Lacs des Chéserys Loop suitable for families or beginners?

The overall loop is generally rated as difficult, requiring good fitness, sure-footedness, and some alpine experience. It is not typically recommended for beginners or very young children due to steep sections, rocky terrain, and ladders. However, using cable cars like the Flégère gondola can significantly reduce the difficulty and make shorter, more moderate sections of the trail accessible to families with older, experienced children.

Nearby routes

Hard

4.9

1,587

Lac Blanc and Lacs des Chéserys Loop

07:54h

16.6km

1,180m

Trail Reviews

Yvo In Den Bosch
June 16, 2024, F - Alps - Mont Blanc - Flégère, Lac Blanc, Montets pass

As there has been significantly more snow in the Alps this season, we decided to start our hiking adventures on the southern side of the mountains. Nevertheless, also this hike provided us with plenty of snowy sections. All of them were quite easy going and some sections even allowed us to slide down through the snow which was plenty of fun 🙌🏻😃Throughout the entire hike we were treated to the most stunning views on the Mont Blanc and surrounding mountain peaks. The Lac Blanc was still largely frozen over, but nonetheless beautiful!! Along the route, once again we were given the opportunity of some close encounters with Ibex 🐐😃 Stunning creatures!!

On this hike I enjoyed myself there were ibexes, when I reached the top there was a lot of snow so follow the route of your GPS carefully and towards the end there is a series of several ladders and platforms if you are prone to vertigo be careful and on this hike you need to be in good physical condition I struggled the last three to four kilometers be careful. So put on good shoes and have a good hike, I give it a 5+++ out of 5.

Translated by Google

A very popular hike, even mid September, lots of people. In high season, come very early

Translated by Google

This is a great hike to spot wildlife such as Chamois and even Golden Eagle .And the views of the Mont Blanc massive are spectacular

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