The Grand Balcon Sud hike is best done early in the season when the mountains are still covered in snow and when there are fewer tourists. I had skipped the Grand Balcon Sud and the Lac Blanc when I first visited Chamonix, because it is one of the most popular hikes in the region. Of course, it is popular for a reason. That's why, this time around, I decided to do it as a sort of acclimatization hike on my first hiking day. I started in Tré-le-Champ and from there I hiked to La Flégère via Lac Blanc and L'Index. I didn't want to stretch it on my first day so I didn't continue to Lac Cornu even though I could have managed. The route via Tré-le-Champ includes a section with ladders for some added fun.
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