Explore hiking trails around Mont-de-Marrast, Midi-Pyrénées. The best hike near Mont-de-Marrast is Lac Nere Loop via Tour des Lacs d'Embarrats - Pourtet - Nère, a 12.8 mile loop in Parc national des Pyrénées (cœur). Mont-de-Marrast has population 105.0.