Start Routes Tré-le-Champ (Argentiere) to Planpraz via Lac Blanc and Le Flégère
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Tré-le-Champ (Argentiere) to Planpraz via Lac Blanc and Le Flégère

· 3 reviews · Hiking trail · Rhône-Alpes
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Walking along the acclaimed Grand Balcon Sud, this stage of the Tour du Mont Blanc is one of the most scenic. 

13.2 km
5:52 h
1476 m
894 m

Start your day by walking or catching the bus (destination Col des Montets) from Argentiere or Chamonix (depending on where you are staying) to Tré le Champ. From here the trail climbs via Aiguillette de Argentière to the Grand Balcon Sud of the Aiguilles Rouges, taking in a few fixed ladders on the way. It is possible to avoid the ladders by taking the variant via Col Des Montets. You are now in the Aiguilles Rouge Nature Reserve and sightings of Ibex, Marmot and many other furry creatures are common. The refuge at the beautiful Lac Blanc is surrounded by high peaks and gives a grand view of Mont Blanc across the valley and the perfect spot for lunch.


Another hour of descent brings you to the cable car station at Le Flégère, continue past the cable car and take the 'Balcon Sud' route traversing across the mountain side with stunning views of Mont Blanc as you go. The balcony route arrives at Planpraz where you can take the cable car down to the centre of Chamonix. User
Angus Smith
Updated: August 05, 2019

Highest point
2355 m
Lowest point
1420 m

Safety information

Weather conditions can change quickly in the mountains - always be prepared and carry appropriate clothing; warm as well as waterproof layers, hat and gloves etc. Please see your information pack for a detailed packing list.

Tips, hints and links

This tour is available in the following itineraries: WFSTMBR2, WFSTMBC2, WFSTMBCC






Tré le Champ (1419 m)
45.996707, 6.926490
32T 339434 5095771


Le Flégère

Turn-by-turn directions

These maps and routes are designed to be used in conjunction with the TMB guidebook and IGN maps. 

TMB Route: Argentière - Tré-le-Champ – Lac Blanc – Plan Praz - Chamonix

Distance: 12 km

Duration: 6-7 hrs

Ascent / Descent: 1450 m / 800 m


Guidebook: Page 115: STAGE 10: Tré-le-Champ – Le Flégère Follow the descriptions in the guidebook and then take the Lac Blanc Option described on page 119. Page 122: Stage 11: Le Flégère – Les Houches (as far as Plan Praz, page 125)

Notes: The ladders on this section are not particularly high but if you don’t like heights I would suggest taking the variant described on page 118 via Col des Montets.

Take the cable car down from Plan Praz to Chamonix for your overnight stay. You will return in the morning.

There are several variants available and it is possible to shorten this stage by not taking the Lac Blanc variant or finishing the day at Le Flégère and taking the telepherique down to les Praz de Chamonix and then the Chambus into the centre of Chamonix.


1. Bus from Argentière/Chamonix to Tré-le-Champ: A regular shuttle bus operates from Argentière to Col des Montets. Take this and alight at Tré-le-Champ. Enquire at the tourist office or your hotel for timetables.

2. Le Flégère – Les Praz de Chamonix Telepherique: Check the up to date information here:,83,en.html  Approx €15:00 for a single ticket (then take the shuttle bus to central Chamonix)

3. Plan Praz – Chamonix: Check the up to date information here:,82,en.html Approx €15.00 single ticket from Plan Praz.


all notes on protected areas

Arrival by train, car, foot or bike

Book recommendations for this region:

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Questions & answers

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Mike Buchanan
September 11, 2019 · Community
A long day. Path closed at Refuge Le Lac Blanc so after walking up to Lake had to descend back to continue on lower path. Probably added 6-8km in walk but worth it for views.
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John Darbyshire
September 14, 2018 · Community
Amazing views. The hike up from Tre le Champ is a big climb. Slow back-ups at the ladders with day hikers from Chamonix heading clockwise. We only made to Flegere lifts at 3 not realizing that this time of year both Flegere and Plan Praz lifts close at 5pm, so we could not continue to Plan Praz.
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Grand Balcon Sud
Photo: John Darbyshire, Community
William Leach
August 24, 2018 · Community
Great walk. Weather lovely so managed the route to Lac Blanc. Ladder sections fine in good conditions. Beautiful scenery. Had to quit at La Flegere as the Plan Praz lift is currently out of action. Worth knowing about for next week or two.
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Photos from others

13.2 km
1476 m
894 m


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