4.3
(336)
1,540
riders
163
rides
Mountain biking around Calonne-Sur-La-Lys offers accessible terrain within the Lys plain, characterized by a predominantly flat landscape. The region features the Lys River, numerous fields, small waterways, and tree-lined paths, providing a tranquil and green environment. This "flat country" makes cycling accessible for various abilities, with routes along riverbanks and canals.
Last updated: July 1, 2026
4.3
(11)
28
riders
54.8km
03:40
180m
180m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.7
(7)
18
riders
30.1km
02:07
40m
40m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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4.5
(4)
9
riders
21.3km
01:11
20m
20m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
4.7
(3)
10
riders
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
5.0
(1)
4
riders
25.2km
01:40
20m
20m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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Marina on the canal, the cycle path is great up to there.
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Starting point for a walk along the Nieppe canal which opens into the forest. Historically: Vestige of this old railway line and presence of bunkers from the Second World War, in short, enough to make a beautiful hike.
2
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La Motte au Bois station is located on the section of the Hazebrouck-Merville line opened in September 1906, today this route is disinfected but offers an ideal setting for mountain bike rides along it.
2
0
great place and lots of activities
0
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with its history
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2
There are over 140 mountain bike trails around Calonne-Sur-La-Lys, offering a variety of options for different skill levels. The komoot community has explored these routes over 1,700 times.
The terrain around Calonne-Sur-La-Lys is predominantly flat, characterized by the Lys plain. You'll find tranquil, green environments with numerous fields, small waterways, and tree-lined paths. This makes for generally less technical mountain biking experiences, suitable for various abilities.
Yes, the region's flat landscape makes it very accessible for beginners and families. There are 59 easy mountain bike tours available. An example of a family-friendly route is Watten Lock – Towpath loop from Merville, which is 21.7 km long and has minimal elevation gain.
While the region is generally flat, there are 9 routes classified as difficult for those seeking a bit more challenge. However, the overall terrain is not mountainous, so 'difficult' typically refers to longer distances or varied surfaces rather than steep climbs.
You'll primarily experience the serene Lys plain, with scenic routes along the Lys River and its canals. Expect to see vast fields, small waterways, and paths shaded by trees, providing a peaceful and green backdrop for your ride.
Yes, the broader area offers several points of interest. You might encounter landmarks such as The Thiennes Bridge, the historic Saint-Venant Town Hall, or the Gothic architecture of Robecq Church. Many routes, like Passerelle de la Lys – The Thiennes Bridge loop from Merville, incorporate these sights.
The area is highly rated by the komoot community, with an average score of 4.3 stars from over 350 reviews. Riders often praise the tranquil environment, the accessibility of the flat terrain, and the scenic routes along the riverbanks and canals.
Many of the mountain bike routes around Calonne-Sur-La-Lys are designed as loops, allowing you to start and finish at the same point. For example, the Marais d'Annezin – Canal d'Aire Greenway loop from Calonne-sur-la-Lys is a popular circular option.
The Passerelle de la Lys – The Thiennes Bridge loop from Merville is a great choice. This moderate 55.9 km trail follows the Lys River, offering views of the historic Thiennes Bridge and the surrounding waterways, blending natural scenery with cultural landmarks.
A popular moderate trail is Château de la motte au bois – Small bridge loop from Merville. This route is 43.5 km long and takes approximately 2 hours 56 minutes to complete, exploring the scenic, flat landscape typical of the Lys plain.
The region is enjoyable for mountain biking throughout the warmer months, from spring to autumn, when the fields are green and the weather is mild. The flat terrain means trails are generally accessible, though checking local weather for rain is always advisable to avoid muddy paths.


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