Sports and leisure activities Saint-Martin-Boulogne

Accessible to all, the sentier de la Colonne is a hike that plunges you into the Denacre valley, which is full of beautiful 19th century mansions and manor houses built of Baincthun stone. Farms, ponds and waterfalls also decorate this 8 km long trail. Don't miss the famous column of the Grande Armée, a 53-metre-high marble monument erected to the glory of Napoleon. It immortalizes the camp of Boulogne where 18,000 men were assembled by the emperor to prepare the invasion of England.