4.6
(8)
497
riders
82
rides
Road cycling routes around Erny-Saint-Julien traverse a landscape characterized by gently rolling hills and agricultural plains, typical of the Pas-de-Calais region. The area features a network of quiet country roads, often following river valleys like the Lys, providing varied terrain for road cyclists. Elevation changes are generally moderate, with some routes including more challenging climbs.
Last updated: October 5, 2026
31
riders
98.9km
04:16
490m
490m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
30
riders
113km
04:54
720m
720m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

4.0
(1)
25
riders
77.5km
03:27
660m
660m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
12
riders
60.9km
03:09
500m
500m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
8
riders
88.2km
03:54
790m
790m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
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The source of the Leie (French: la source de la Lys) is located in the small French village of Lisbourg, situated in the Pas-de-Calais department in the Hauts-de-France region. The river originates here at an altitude of approximately 115 meters and flows via Aire-sur-la-Lys towards Belgium, eventually flowing into the Scheldt in Ghent after approximately 202 kilometers.
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A very well-known place for pilgrims and a good tavern which recently reopened: LA TABLE DE ST BENOIT.
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This picturesque village owes much of its fame to the birth of Saint Benedict Joseph Labre, born in the village in 1748. It is also an essential stop on the religious route of the Via Francigena.
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The patron saint of the marginalized, Saint Benedict Joseph Labre, was born in 1748 in the picturesque village of Amettes. He is better known as "God's Traveler." A French mendicant pilgrim, he traveled the roads of Europe, from sanctuary to sanctuary until his final stop: Rome. He was canonized in 1881. The birthplace of Saint Benedict Joseph, a small chalet, has become an important pilgrimage site in Artois, dedicated to his memory and housing his belongings.
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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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This mill currently hosts a gîte.
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There are over 90 road cycling routes around Erny-Saint-Julien, offering a wide variety of options for different skill levels and preferences.
The region is characterized by gently rolling hills and agricultural plains, typical of the Pas-de-Calais. You'll find a network of quiet country roads, often following river valleys like the Lys, providing varied terrain. Elevation changes are generally moderate, though some routes include more challenging climbs.
Yes, Erny-Saint-Julien offers 23 easy road cycling routes. These trails are perfect for those new to road cycling or looking for a more relaxed ride through the scenic countryside.
Absolutely. For experienced cyclists seeking a challenge, there are 4 difficult routes available. One such route is The Hem at Licques – Bois Lottin Climb loop from Enquin-les-Mines, which features significant elevation gain and sustained climbs.
Yes, many of the road cycling routes around Erny-Saint-Julien are designed as loops, allowing you to start and finish at the same point. Examples include The beautiful hump loop from Enguinegatte and Source of the Lys – Source of the River Lys loop from Erny-Saint-Julien.
While cycling, you can explore several points of interest. Consider routes that pass by the Moulin Espagnol d'Enquin les Mines or the historical Birthplace of Saint Benoît Labre. The Waterfall of Nave river in Bourecq – Birthplace of Saint Benoît loop from Estrée-Blanche offers a scenic ride past natural and historical landmarks.
Yes, the region is rich in history. You might encounter the Birthplace of Saint Benoît Labre or the charming Saint-Léger Church in Cléty. These historical sites provide interesting stops along your ride.
The road cycling routes in Erny-Saint-Julien are highly rated by the komoot community, with an average score of 4.6 stars from 5 reviews. Cyclists often praise the quiet country roads, varied terrain, and the scenic beauty of the river valleys and agricultural landscapes.
The best seasons for road cycling in Erny-Saint-Julien are typically spring and autumn, when the weather is mild and the landscapes are particularly vibrant. Summer also offers pleasant conditions, though it can be warmer. Winters can be cold and potentially wet, making some routes less ideal.
Yes, you can find routes that highlight these natural and historical features. For instance, Source of the Lys – Source of the River Lys loop from Erny-Saint-Julien takes you past the Source of the River Lys. Another route, The Renty water mill – Delettes loop from Enquin-les-Mines, passes by a historic water mill.
Yes, the Waterfall of Nave river in Bourecq – Birthplace of Saint Benoît loop from Estrée-Blanche is a moderate route that allows you to experience the beauty of the Nave river's waterfall.


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