Presentation
Immerse yourself in the world of the high mountains, high-altitude lakes, glaciers and eternal snows.
Take the path that winds down into the valley. Here and there, persistent snow reminds you that you are at altitude and that the nights are cool, but the shrill cry of marmots on the alert in the scree slopes means that summer is well and truly here, with its procession of wild flowers and dazzling light.
As you arrive at Lac Bramant, marvel at this high-altitude lake nestling at the foot of the mountains. The path then skirts Lac Blanc, in which the eternal snows are reflected. As for the third lake, you'll have to guess it because it's disappearing...
If you have the time and inclination to continue discovering this unique environment, continue the adventure to the foot of the Saint-Sorlin glacier (allow just over an hour from the end of the second lake).
From here, you'll have the chance to admire a true lord of the mountains: the largest glacier in the Grandes Rousses massif is right in front of you! On the way back, you'll have had a well-deserved gourmet break at the Etendard refuge.
Detailed route
Start - Col de la Croix de Fer
1/ From the car park overlooking the old alpine chalets of the Combe d'Olle, take the right-hand route for the easiest access. The twists and turns of the route allow you to discover the slopes of the Aiguilles d'Argentière and the Aiguilles d'Arves.
2/ Once you've reached the Col des Tufs, which requires some effort, the three lakes come into view.
3/ You can enjoy a picnic around one of the lakes or a meal at the Étendard refuge. From the refuge, go around the lakes on the left bank as far as Lac Blanc.
4/ From Lac Blanc, you can extend the route to reach the foot of the Saint Sorlin glacier, which will add a good 2 hours to the hike each way. If you stay on the proposed route, continue around the two lakes, first via the Col Sud, then the Col Nord des Lacs.
5/ At the Col Nord, follow the old mountain pasture path down past the Carrelet, then down to the Choseaux chairlift before turning right towards the Col de la Croix de Fer car park.
6/ Follow the Carrelet to reach the Col de la Croix de Fer.
