4.3
(3)
27
riders
8
rides
Gravel biking around Lumbres offers diverse and undulating landscapes within the Regional Natural Park of Caps et Marais d'Opale. The region features limestone hillsides, forests, streams, and valleys, providing varied terrain for gravel bike trails. The scenic Aa Valley also contributes to the varied routes available, blending aspects of road cycling and mountain biking. This combination ensures an engaging experience for gravel bikers.
Last updated: July 4, 2026
3
riders
33.4km
02:26
390m
390m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
riders
52.6km
04:11
770m
770m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4
riders
55.9km
04:11
680m
680m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
3
riders
32.1km
02:09
400m
400m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(1)
3
riders
47.9km
03:29
590m
590m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Thérouanne was Sigeric's 77th stop on his return from Canturbey's pilgrimage to Rome. In the 19th century, this fortified town was a French enclave within the German Empire, but was razed by Charles V in 1553. On the hill north of the town are the remains of one of the first cathedrals built in the Gothic style in France. The famous Great God of Thérouanne, which adorned one of the portals, is now housed in Saint-Omer Cathedral.
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Founded in 1889, this abbey was built in the Gothic style. Listed as a Historic Monument, it consists of several buildings, including two castles. Today, it is home to around twenty Benedictine nuns of all ages. The monastery is partially open to the public: the abbey church, parlor, and shop are accessible.
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From 1859 onwards, the permanent church was built and in 1860 the tower was built. In 1865 the choir was restored and in 1866 a new sacristy was built. This church was consecrated in 1872. The stained glass windows of this church show the coats of arms of the bishops of the former diocese of Thérouanne. They were installed in 1901-1902.
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Thérouanne is stop 77 of Sigeric on his return journey from Canterbury to Rome. The town is also located on the historic road between Boulogne and Arras (Chaussée Brunehaut). In the 16th century, this fortified town was a French enclave within the German Empire, but was razed to the ground by Charles V in 1553. On the hill to the north of the town lie the remains of one of the first cathedrals built in the Gothic style in France. The famous Grand dieu de Thérouanne, which once adorned one of the portals, is now in the cathedral of St-Omer.
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The neo-Gothic church was built before 1597 and replaced another building from the 11th century, which stood near the current chapel of Notre-Dame des Affligés. It was partially rebuilt in 1855. The tower dates from 1683. The originality of this construction lies in the fact that the bell tower is not above the entrance door, but above the choir. The door is simply formed by a pointed arch decorated with a pentacle. The first two bays of the nave are built of red brick and the last two in chalk. The four bays of the nave also have a pointed arch. The bell tower is formed by a gable wall that projects above the nave. The buttresses on this side are placed in line with the wall, creating a flat surface. The buttresses of the bell tower on the choir side are well placed on the corners
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There are 10 gravel bike trails available around Lumbres, offering a variety of experiences for different skill levels. These routes are highly rated by the komoot community, with an average score of 4.6 stars.
The gravel bike trails in Lumbres feature diverse and undulating landscapes. You'll encounter limestone hillsides, forests, streams, and valleys within the Regional Natural Park of Caps et Marais d'Opale, providing a dynamic and scenic riding experience.
Yes, Lumbres offers options suitable for beginners. For a moderate ride with scenic views, consider the Quelmes – Nice view with boules court loop from Setques, which is 33.4 km long. The region also has an 11 km 'Val de Lumbres' circuit described as family-friendly with small hills.
For experienced riders seeking a challenge, Lumbres has several difficult routes. The The Marsh House – Le Moulin Pidoux loop from Tilques is a demanding 71.6 km path exploring marshlands and historic mill areas. Another difficult option is the Saint-Omer Valley – Pihem Ravine loop from Pihem, covering 52.6 km through varied terrain.
Most of the gravel bike routes around Lumbres are designed as loops, allowing you to start and finish at the same point. Examples include the Pihem Ravine – Le Moulin Pidoux loop from Wisques and the Saint Martin Church – Saint-Léger Church, Cléty loop from Pihem.
Beyond the natural beauty, you can explore several attractions. The historic Saint-Sulpice church in Lumbres is a notable landmark. Nearby, you can visit the Saint-Omer Cathedral or the Ruin of St Martin's church. The Aa Valley, accessible via a period tourist train from Lumbres, also features the Helfaut dome museum.
Yes, the region's diverse natural environment, particularly within the Regional Natural Park of Caps et Marais d'Opale, offers opportunities for wildlife spotting. The Serques Marshes, through which the Houlle River flows, are known for their rich biodiversity and scenic views.
Lumbres is indeed suitable for family-friendly gravel biking. The 'Val de Lumbres' circuit, an 11 km ride, is specifically described as family-friendly with small hills, transitioning quickly from town to scenic gravel roads with panoramic views.
Lumbres offers enjoyable gravel biking throughout much of the year due to its varied landscapes. Spring and autumn generally provide pleasant temperatures and vibrant scenery. While winter conditions can vary, the well-maintained trails within the regional park are often accessible, though checking local conditions is always advisable.
Lumbres is well-equipped for outdoor enthusiasts, with a dedicated mountain bike base and trail station. These facilities often provide information on convenient parking locations for accessing the extensive network of trails. Specific parking details for individual routes can usually be found on the respective tour pages.
Lumbres has some public transport connections, and its proximity to towns like Saint-Omer, which has a train station (Saint-Omer station), makes it possible to reach the area. For specific trailheads, local bus services or a short ride from the town center might be necessary. The period tourist train also offers a unique way to explore the Aa Valley.


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