4.4
(34)
1,485
riders
235
rides
Road cycling around Thérouanne offers diverse landscapes, from scenic countryside to varied topography. The region features rolling terrain with both gentle stretches along river valleys and more undulating sections. This authentic environment provides a tranquil backdrop for rides, allowing cyclists to explore the natural beauty of the Pays de Saint-Omer. The area's network of routes caters to different preferences, including dedicated road options.
Last updated: July 2, 2026
32
riders
98.9km
04:16
480m
480m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
3.0
(1)
55
riders
91.5km
03:53
370m
370m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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13
riders
43.3km
01:51
300m
300m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
16
riders
47.2km
02:05
150m
150m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
4.3
(3)
7
riders
39.4km
01:56
420m
420m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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The belfry of Aire-sur-la-Lys (in Dutch: Ariën-aan-de-Leie) is a historic, baroque belfry in the French department of Pas-de-Calais that has been on the UNESCO World Heritage list since 2005. The striking tower is attached to the town hall and dominates the skyline of the historic town.
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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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The small village of Delettes includes the hamlets of Upen d'Amont, Upen d'Aval, and Westrehem. Crossed by the Lys River, it boasts a pretty sluice mill built on the banks of the river.
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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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and the cemetery crucifix
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This Spanish mill was built around 1635, on the banks of the Lacquette River. It produced flour until 1938, then milling for livestock. It was bought in 1974 to be transformed into a home. It is built with brick and stone (white limestone). All that remains of the original building is the north gable (17th century), and also a porch. The water wheel is still in place but it no longer turns. The dam forms a pretty waterfall. A turret was added on the river side. It is a very beautiful private home with a beautiful garden in which you can see a stone fountain.
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The Beffroi d'Aire-sur-la-Lys is a monument that is part of the heritage of Aire-sur-la-Lys. It was first built in 1355 and rebuilt between 1716 and 1724 by the architect Hérogue. It has been listed as a historic monument since 1947 together with the adjacent town hall1. The beffroi is 45 meters high and rests on four large pillars of brick and stone, two meters thick, which demarcate an interior space of six meters wide. It is of Baroque style and is part of the list of 23 belfries inscribed on the UNESCO World Heritage List in 2005 as part of the list of "Belfries of Belgium and France".
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Thérouanne offers a wide selection of road cycling routes, with over 200 different tours available. These routes cater to various preferences and skill levels, allowing cyclists to explore the diverse landscapes of the region.
The region around Thérouanne features varied terrain, including scenic countryside with rolling landscapes and stretches along river valleys. You'll find both gentle sections and more undulating parts, providing a dynamic cycling experience. For example, routes like The beautiful hump loop from Enguinegatte include significant elevation gain, while others offer a more balanced ride.
Yes, Thérouanne has routes suitable for beginners. There are 44 easy-rated road cycling tours. An example of an easy route is the Étang de Rebecques – Aire-sur-la-Lys Belfry loop from Thérouanne, which covers about 39 km with moderate elevation.
For experienced riders seeking a challenge, Thérouanne offers 8 difficult-rated road cycling routes. While specific names for difficult routes are not listed here, you can expect longer distances and more significant elevation gains on these trails, providing a rigorous workout through the region's varied topography.
Yes, many road cycling routes in Thérouanne are designed as loops, allowing you to start and end at the same point. Examples include Thérouanne – Étang de Rebecques loop from Thérouanne and Beautiful Hollow loop from Dohem, which offer convenient circular journeys through the local landscape.
Thérouanne is rich in history. As you cycle, you can explore sites related to its past as a significant bishopric. While not directly on every route, nearby attractions include the archaeological site of the ancient Thérouanne Cathedral and the Maison de l'Archéologie. Other historical points of interest in the wider area include the Saint-Pierre Collegiate Church of Aire-sur-la-Lys and various windmills like Moulin des Invalides and Le Moulin Pidoux.
Absolutely. The region is known for its authentic and scenic countryside. Many routes traverse the picturesque Lys valley, offering tranquil views. You might also encounter natural sites around Thérouanne and opportunities to explore the Pays de Saint-Omer's natural beauty. The Thérouanne – Étang de Rebecques loop, for instance, includes a visit to Étang de Rebecques, a lovely natural feature.
The road cycling routes in Thérouanne are highly regarded by the komoot community, with an average rating of 4.6 stars from over 20 reviews. Cyclists often praise the scenic countryside, the variety of terrain, and the well-maintained paths that make for an enjoyable experience.
Yes, Thérouanne can be suitable for family road cycling, especially if you choose the easier routes. With 44 easy-rated tours, families can find paths that are less demanding in terms of distance and elevation, allowing for a pleasant shared experience through the scenic landscape.
While specific seasonal data isn't provided, generally, spring through early autumn (April to October) offers the most favorable conditions for road cycling in regions like Thérouanne. During these months, the weather is typically milder, and the natural scenery is at its most vibrant, making for a more enjoyable ride.
Thérouanne and its surrounding villages offer various amenities. While specific cafes or accommodations directly on routes are not detailed, the town itself and nearby communities provide options for refreshments and lodging. Exploring the local area will reveal places to refuel and rest after your rides.
Parking is generally available in and around Thérouanne, particularly in the town center or near popular starting points for routes. For specific routes, it's advisable to check the route details on komoot, as many tours will indicate suitable parking locations at their start or along the way.


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