Boulogne-sur-Mer, Hauts-de-France, France
23.9 miles (38.4 km) · 1,648 ft elevation gain · Loop · trail · Route
Ceinture de Boulogne is a 23.9-mile loop route in Boulogne-sur-Mer, Hauts-de-France, France, gaining 1,648 feet of elevation. The route follows a up-and-over elevation profile. The terrain breaks into 7 distinct sections including 2 significant climbs. The longest climb covers 2.6 miles gaining 327 feet at an average 2.5% grade. Approximately 91% of the route is runnable at a steady effort. The route opens with mixed terrain and finishes with a gradual climb.
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