Le Bourg-d'Oisans has 1 trail including difficult difficulty trails. The trail with the highest elevation climb is GR 50 and the one with the least climb is GR 50. The longest trail is the GR 50 at 373 km. To complete this hike you should budget at least 25 days. For a shorter adventure you can try the GR 50 at 373 km. This could be done in as little as 25 days. Trails with the best offering of hostels include GR 50.