Bonneville has 2 trails including difficult difficulty trails. The trail with the highest elevation climb is Chamonix to Zermatt - Haute Route and the one with the least climb is Tour du Mont Blanc. The longest trail is the Chamonix to Zermatt - Haute Route at 204 km. To complete this hike you should budget at least 15 days. For a shorter adventure you can try the Tour du Mont Blanc at 165 km. This could be done in as little as 11 days. Trails with the best offering of hostels include Tour du Mont Blanc and Chamonix to Zermatt - Haute Route.