assemblage des fichiers GPX velofrancette ouistreham saumur 35.6 32.2 34.9 35 36.1 36.5 39.2 49.5 51.6 55.8 56.6 58.3 58.1 59.1 60 59.9 62.1 63.8 65.6 66.6 65.6 65.6 64.6 67.7 72.8 75.1 76.4 75.6 80.7 72.6 64.5 59.5 52.7 51 48.6 45.3 46.4 42.6 40.8