De Serans à Saint-Valéry-sur-Somme

258.87 km loop hiking starting from Saint-Valery-sur-Somme. Elevation gain is 4198 m, with altitude ranging from 4 m to 229 m. Estimated time: 77 h. Starting town: Saint-Valery-sur-Somme (Hauts-de-France, France).

This hike includes 2 significant climbs. With a total elevation gain of 3017 m across 95.72 km, with an average slope of 3.2%.

• Climb 1 (at km 139.15 km): +740 m over 28.99 km, average slope 2.6%
• Climb 2 (at km 391.01 km): +2277 m over 66.73 km, average slope 3.4%