The terrils 83 and 94 — loop from Marais de Fouquières

The komoot data suggests a duration of approximately 2 hours and 19 minutes. However, local sources indicate it can take around 2 hours and 50 minutes, depending on your pace and how much time you spend enjoying the views and unique features.

Komoot rates this trail as "moderate." While Terril 94 includes challenging elements like an "escalier infernal" (infernal staircase) with 140 steps and a crossfit zone, the loop itself generally utilizes less strenuous paths. It's considered "easy" to "moderate" overall, making it accessible for most hikers.

The trail offers a diverse landscape. You'll traverse former mining waste heaps (terrils), marshlands, and follow the canal de Lens. Expect a mix of hiking paths, some sections of roads, and significant portions of unpaved ground. On the terrils, you'll encounter slag heap paths and stairs, and your footwear might get stained by the black color of the slag.

Yes, the trail is rich in interesting features. You'll pass by the Étang du Brochet and the Marais de la Galance. From the viewpoint on Terril 94, at an altitude of 130 meters, you can enjoy fantastic 360-degree panoramic views, including the mining basin, the hills of Artois, and the banks of the Souchez. You might even spot fumeroles, which are peculiar "volcanic" appearances caused by burning materials within the heaps.

The trail starts from Marais de Fouquières. While specific parking details aren't provided, it's generally advisable to look for designated parking areas near the marsh or in the nearby town of Fouquières-lès-Lens to access the trailhead conveniently.

Yes, the trail is generally dog-friendly. However, it's always recommended to keep your dog on a leash, especially in marsh areas or near wildlife, and to be mindful of other hikers and any specific local regulations.

The trail can be enjoyed year-round, but spring and autumn offer particularly pleasant conditions with milder temperatures and beautiful scenery. Autumn also brings unique colors to the landscape. Be aware that slag heap paths might be muddy after rain.

No, there are no permits or entrance fees required to access the "The terrils 83 and 94 — loop from Marais de Fouquières" trail. It's freely accessible to the public.

Given its "easy" to "moderate" rating and diverse scenery, the loop is generally suitable for families. However, be aware that Terril 94 does have sections with stairs and elevation changes that might be more challenging for very young children or those with strollers. Consider the overall distance and your family's hiking experience.

Yes, the route also passes through sections of the Boucle 2 - Le bassin minier sous toutes ses facettes, Boucle 3 - De la mine au Louvre-Lens, and Via Brugensis - variante par le canal d’Harles.

The terrils are unique because they represent a successful transformation of industrial heritage into natural spaces. These former mining waste heaps, symbols of 270 years of coal exploitation, now offer diverse landscapes from wooded areas to panoramic viewpoints. Terril 94, in particular, has been redeveloped into a dynamic sports park, blending hiking with trail running and fitness amenities, showcasing environmental rehabilitation.