4.5
(36)
2,107
riders
202
rides
Road cycling routes around Delettes are characterized by a blend of vast agricultural plains and rolling countryside, offering varied terrain for cyclists. The region, part of the wider Pays de Saint-Omer, features roads with gentle, regular climbs and flat stretches. Cyclists can explore areas near the Lys Valley, known for its verdant scenery, and encounter historic villages and water mills.
Last updated: July 31, 2026
4
riders
34.8km
01:32
350m
350m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
4
riders
23.0km
01:03
250m
250m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

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8
riders
23.8km
01:02
80m
80m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
3
riders
60.4km
02:45
640m
640m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
4
riders
48.0km
02:16
400m
400m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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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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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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The Ruines de l’Abbaye Saint-Bertin are the remains of a Benedictine monastery in Saint-Omer, France. The monastery was founded in the 7th century by the Bishop of Thérouanne under the name Abbaye de Sithiu. The ruins of this monastery are located in Saint-Omer, Rue des Ruines Saint-Bertin. They were classified as a historical monument in 1840. The buildings are now in ruins, but are open to the public. The abbey was originally dedicated to Saint Peter and later to Saint Bertin. It was one of the three most powerful abbeys in the north of the kingdom. The monastery was surrounded by a wall and bordered the rivers Aa and Haute-Meldick. It consisted of three parts: the regular places, the peripheral districts and the outbuildings. The abbey church was located at the heart of the monastery and all the buildings were organized around it. The monastery also had a cloister, refectory, parlour, celler, chauffoir and kitchens. The ruins of the abbey offer a fascinating insight into the medieval history of France and are a popular tourist attraction.
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The statue of Suger in Saint-Omer is located in front of the ruins of the Abbey of Saint-Bertin. This impressive marble statue was created by the French sculptor Jean-Baptiste Stouf (1742-1826) and was originally placed in the courtyard of the Palace of Versailles in 1836. In 1931, it was decided to distribute these statues throughout France, and so the statue of Suger came to Saint-Omer, where he is said to have been born. The statue is 4.50 meters high and weighs 8 tons. The statue shows Suger with two symbols of royal power: the crown on a cushion and the hand of justice. Suger was an important figure in the Abbey of Saint-Denis and served as regent of the kingdom during the crusade of King Louis VII. He was born in 1082 and died in 1152.
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The Ruines de l’Abbaye Saint-Bertin are the remains of a Benedictine monastery in Saint-Omer, France. The monastery was founded in the 7th century by the Bishop of Thérouanne under the name of Abbaye de Sithiu. The ruins of this monastery are located in Saint-Omer, Rue des Ruines Saint-Bertin. They were classified as a historical monument in 1840. The buildings are now in ruins but are open to the public. The abbey was originally dedicated to Saint Peter and later to Saint Bertin. It was one of the three most powerful abbeys in the north of the kingdom. The monastery was surrounded by a wall and bordered the rivers Aa and Haute-Meldick. It consisted of three parts: the regular places, the peripheral districts and the outbuildings. The abbey church was located at the heart of the monastery and all the buildings were organized around it. The monastery also had a cloister, refectory, parlour, celler, chafing room and kitchens. The ruins of the abbey offer a fascinating insight into the medieval history of France and are a popular tourist attraction.
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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 region around Delettes offers a diverse road cycling experience. You'll find a mix of vast agricultural plains, perfect for maintaining a steady pace, and rolling countryside with gentle but regular climbs that provide engaging variation without being overly strenuous. The area also features scenic routes near the Lys Valley, known for its verdant landscapes.
There are over 200 road cycling routes available around Delettes. These routes cater to various skill levels, with approximately 40 easy routes, 150 moderate routes, and 15 more challenging options for experienced cyclists.
Yes, there are several easy road cycling routes suitable for families. For instance, the Cycle lane away from the road loop from Cléty is an easy 19.2-mile (30.8 km) route that offers a smooth ride, often away from main roads, making it a good option for families.
Road cycling routes around Delettes often pass through charming villages and near historical sites. You could encounter the historic Moulin Espagnol d'Enquin les Mines, a 17th-century former water mill, or the ancient Le Moulin Pidoux. The region also features the significant historical site of The Dome (La Coupole) near Helfaut-Wizernes, a former V2 rocket base.
Yes, many of the road cycling routes in the Delettes area are designed as loops, allowing you to start and finish in the same location. Examples include the Thérouanne – Étang de Rebecques loop from Thérouanne and the Source of the Lys – Source of the River Lys loop from Erny-Saint-Julien, which takes you through the picturesque Lys Valley.
The road cycling routes around Delettes are highly regarded by the komoot community, with an average rating of 4.6 stars from over 30 reviews. Cyclists often praise the varied terrain, from flat agricultural plains to gentle climbs, and the scenic beauty of the Lys Valley and charming villages.
The Pays de Saint-Omer region, including Delettes, is generally pleasant for road cycling from spring through autumn. These seasons offer milder temperatures and more stable weather conditions, making for an enjoyable experience. While specific weather conditions can vary, French roads are often noted for their smooth surfaces, which contribute to a good ride in most conditions.
Absolutely. The region offers routes of varying lengths. For example, the Source of the Lys – Source of the River Lys loop from Erny-Saint-Julien is a moderate 37.8-mile (60.9 km) trail, typically completed in about 3 hours, providing a substantial ride through scenic landscapes.
While Delettes itself is a smaller commune, the surrounding Pays de Saint-Omer region features charming, typical villages where you can often find local cafes or small shops to pause and refuel. Larger towns like Saint-Omer, which is approximately 15 km from Delettes, offer more amenities and dining options that can be incorporated into longer routes.
While specific dedicated cycling parking facilities in Delettes are not detailed, as a commune in France, you can typically find public parking in village centers or near local amenities. For routes starting from nearby towns, such as Thérouanne or Cléty, there are usually parking areas available for visitors.
Many routes showcase the region's natural beauty. The Lys Valley is particularly noted for its verdant scenery, and routes like the Source of the Lys – Source of the River Lys loop from Erny-Saint-Julien offer picturesque views along the river. The rolling countryside also provides scenic vistas and a sense of rural tranquility.


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