

At the very top of France lies a land to be discovered, a land of conviviality, mountains and tradition. Flanders, your new playground.
The Monts de Flandre, a land of conviviality where authenticity rhymes with good humour, a land of contrasts where the mounts follow the plains, a living land of traditions and festivities... a beautiful playground for sportsmen and nature lovers, the 1st cross-border Trail Area, on the Franco-Belgian mountain range.

The National Botanical Conservatory of Hauts-de-France invites walkers and athletes to discover the natural beauty of the Heart of Flanders, in six episodes from January to June, in partnership with In Flanders Trails (with financial support from the French Office for Biodiversity (OFB) and the Cœur de Flandre Agglomeration Community).
Episode 1: The hedgerowsFind the 1000 Pattes guide, the 2025 trail/running magazine, the most widely distributed in the Hauts-de-France region, at our tourist information offices in Bailleul, Cassel, and Hazebrouck. Bonus: a feature article on the "In Flanders Trails" area and new routes in Cassel can be found on pages 24 and 25.
The online guide!The new trails around Mont Cassel are now available in the In Flanders Trails app. New loops, panoramic views to discover and an expanded playground for your trail runs. The circuits have been updated, and 3D visualisation has been added to help you plan your routes. Try out these new features today!
The new routes!Wear the colours of Flanders with the jersey bearing the effigy of the Espace Trail de la Chaîne des Monts de Flandre.
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To experience the trail even more intensely, you can take advantage of a thematic weekend, an activity or even specialized workshops to progress. No doubt, the trail in the Heart of Flanders offers you a range of possibilities to surpass yourself!


Find our special shop online and in our tourist information offices.
