4.5
(198)
864
riders
170
rides
Mountain bike trails around Sercus traverse a landscape characterized by rolling terrain, agricultural fields, and pockets of dense woodland. The region features moderate elevation changes, with routes often connecting historical sites like abbeys and chateaus. Paths frequently lead through forest sections and along rural roads, offering varied surfaces for mountain biking. This area provides a network of trails suitable for exploring the local countryside.
Last updated: June 17, 2026
5.0
(4)
20
riders
63.1km
04:22
270m
270m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(1)
12
riders
71.5km
04:35
360m
360m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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4.0
(1)
8
riders
37.0km
02:24
190m
190m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4
riders
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
4.0
(1)
3
riders
27.6km
01:43
160m
160m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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The Pont de Thiennes is a road bridge located on the Lys, connecting the municipalities of Thiennes and Aire-sur-la-Lys. The bridge is 200 metres long and was inaugurated in 2014. It is built of Soignies granite and was financed by the state (33.9%) for war damage, by the department of Pas-de-Calais (33.05%) and by the department of Nord (33.05%). The bridge is equipped with a lifting system to allow the passage of boats.
7
0
Very personal touch 😌, to say that I played inside as a kid... Still present today and may it remain there for a very long time. Wonderful childhood memory. to see out of curiosity when you follow this agricultural path.
2
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A place steeped in history Possibility to visit the church Check with the town hall
1
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war 39 45
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The mountain bike trails around Sercus feature a diverse landscape of rolling terrain, open agricultural fields, and dense woodland sections. You'll encounter moderate elevation changes and varied surfaces, including forest paths and rural roads, offering a mix of challenges and scenic views.
There are over 150 mountain bike trails available around Sercus, catering to various skill levels. This includes approximately 45 easy routes, over 100 moderate routes, and a few more challenging options for experienced riders.
Yes, Sercus offers around 45 easy mountain bike trails suitable for beginners or those looking for a more relaxed ride. These routes typically feature gentler terrain and less demanding ascents, allowing for an enjoyable experience exploring the countryside.
For experienced mountain bikers seeking a challenge, Sercus has a few difficult trails. Additionally, many of the over 100 moderate routes offer significant distances and elevation gains, such as the Mont des Cats Abbey – Hellegatbos Forest Path loop from Hazebrouck, which covers over 56 km with more than 700 meters of elevation gain.
Yes, many of the mountain bike trails in Sercus are designed as loops, allowing you to start and finish at the same point. Examples include the popular Château de la motte au bois – Small bridge loop from Hazebrouck and the Chemin Saint-Pierre – Gaeieperseweg loop from Hazebrouck.
The trails often connect historical sites and points of interest. You might pass by abbeys, chateaus, and other significant landmarks. For example, the Mont des Cats Abbey – Hellegatbos Forest Path loop from Hazebrouck explores historical landmarks, while the Château de la motte au bois – Small bridge loop from Hazebrouck offers views of a historic château. Nearby attractions include Cassel Village and The mill on Cassel Hill.
The Sercus area is highly rated by the komoot community, with an average score of 4.6 stars from over 160 reviews. Mountain bikers frequently praise the varied terrain, which includes rolling hills, dense woodlands, and open agricultural landscapes, as well as the well-maintained network of trails suitable for different ability levels.
While Sercus is characterized by rolling terrain, some trails do offer notable elevation gains. For instance, the Mont des Cats Abbey – Hellegatbos Forest Path loop from Hazebrouck features over 700 meters of ascent, providing a good workout for riders.
Sercus offers several longer routes for endurance riders. The Small bridge – Panoramic view of Boëseghem loop from Hazebrouck is one of the longest, stretching over 60 km. Another substantial option is the Mont des Cats Abbey – Hellegatbos Forest Path loop from Hazebrouck, which is approximately 56 km long.
While specific public transport options directly to trailheads can vary, many routes, such as those starting from Hazebrouck, are accessible from towns that may have public transport links. It's advisable to check local transport schedules for the most convenient access points to your chosen trail.
Yes, the trails often lead through scenic areas with opportunities for views. The landscape of rolling hills and open agricultural fields provides picturesque vistas. For example, the Small bridge – Panoramic view of Boëseghem loop from Hazebrouck suggests a panoramic view, indicating scenic spots along the way.


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