Chemin des pyramides de GypseThrilling hike from Bretaye around the Chaux Ronde ridge. On the way, three mountain lakes, idyllic alpine pastures, superb panoramic views of the Mont Blanc massif – and the famous gypsum pyramids near Col de la Croix.learn more on schweizmobil.ch12.0 km|540 m|540 m|3h 35m