Marathon du Mont-Blanc

The Marathon du Mont-Blanc is an international sports event organized by the Club des Sports de Chamonix, taking place over three days in late June 2025. The event features eight running competitions around Chamonix, set against the stunning backdrop of the Mont Blanc massif. In an effort to reduce its environmental impact, the marathon will reserve 40% of race entries for participants who commit to traveling by train or bus.

Additionally, carbon offsetting for all participants' travel will be mandatory. The event promotes not only athleticism but also environmental awareness and community engagement. Visit the organization's website for the most recent information.