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Thérouanne walks
Route des Batailles in Thérouanne
Local authority
5.65 mi
+197 ft
-197 ft
2h 45
Easy
Departure from Thérouanne (Pas-de-Calais)
Thérouanne was the capital of the Gallic tribe known as the ‘Morins’. The town was conquered by Julius Caesar. In the Middle Ages, it was the seat of an important bishopric stretching from the Canche to the Yser. It was completely destroyed following the siege by Charles V’s imperial army in 1553, as it was a French enclave.
This trail pays tribute to the three battles that took place at Enguinegatte during the capture of Thérouanne. It is a signposted trail managed by the Pays de Saint-Omer Urban Community.
Circuit d'Ecques par les landes
Visorando Member14.19 mi
+407 ft
-407 ft
6h 50
Difficult
Departure from Ecques (Pas-de-Calais)
Leave Ecques via the same route, then take a long, flat walk through the fields to reach Heuringhem. Continue across the moors of Blendecques, Rietz de l'Église and Bibrou before reaching Quiestède via Les Bruyères. Return via the Bois d'Ecques.
The route is relatively flat, but there are a few wet areas (more depending on the weather). During hunting season, avoid Sundays, as some communal woods are rented to hunting clubs!
Route modified and improved in September 2024 to avoid the D 190.
The Ponds Trail
3.99 mi
+23 ft
-23 ft
1h 50
Easy
Departure from Mametz (Pas-de-Calais)
A short 6 km walk to explore the Étangs de la Sauvagine in Mametz and the Étangs de Rebecques.
Hillsides of La Laquette
13.45 mi
+810 ft
-830 ft
6h 55
Difficult
Departure from Enquin-les-Mines (Pas-de-Calais)
A long journey around Enquin-les-Mines that will take you across the northern and southern slopes of Laquette.
The Surgeon hills
6.86 mi
+610 ft
-584 ft
3h 40
Moderate
Departure from Enquin-les-Mines (Pas-de-Calais)
A short, undulating route offering beautiful views.
Hills and valleys in Coyecques
9.64 mi
+991 ft
-991 ft
5h 20
Moderate
Departure from Coyecques (Pas-de-Calais)
From the Lys Valley to Noir Mont and discovery of the hidden valley of Maisnil.
The route is almost entirely off-road, either on good grassy paths or vaguely paved paths.
Do not look for markings, as there are none.
Yellow River Trail
2.20 mi
+213 ft
-213 ft
1h 10
Easy
Departure from Helfaut (Pas-de-Calais)
A short walk around the La Coupole blockhouse, where forest and magnificent ponds come together.
Around Bomy
3.48 mi
+102 ft
-112 ft
1h 40
Easy
Departure from Bomy (Pas-de-Calais)
A short walk in the Artois region, particularly pleasant in autumn.
Route des sources de Bomy
7.13 mi
+423 ft
-436 ft
3h 40
Moderate
Departure from Bomy (Pas-de-Calais)
A route that allows you to discover Bomy’s heritage: the Rotonde des Tilleuls, the castle, Saint-Vaast Church, the restored vicarage, the mill, as well as the source of the Laquette, the Sainte-Frévisse Fountain and its oratory (picnic spots).
This route is signposted in red, starting from the Rotonde des Tilleuls on the village square.
Bois, vallée et coteau de Wavrans-sur-l'Aa
12.32 mi
+761 ft
-745 ft
6h 20
Difficult
Departure from Remilly-Wirquin (Pas-de-Calais)
Another route around the Coteau d’Elnes with very little tarmac. Crossing the Bois d’Esquerdes is even more enjoyable, and the long walk along the riverbank is most pleasant. Finally, the section through the hillside, especially in fine weather, is a real delight (even if it is a bit of a struggle!)
From the Aa to the Bois d'Esquerdes
13.22 mi
+699 ft
-709 ft
6h 40
Difficult
Departure from Remilly-Wirquin (Pas-de-Calais)
Another long route in this magnificent region.The double crossing of the Bois d’Esquerdes is very pleasant, even if wildlife seems scarce there.Discover the Cartoucherie site.
Back to the Elnes hillside
14.03 mi
+1,309 ft
-1,283 ft
7h 35
Difficult
Departure from Remilly-Wirquin (Pas-de-Calais)
This place is so beautiful that it deserves a second route.Another good climb with 2 nice climbs and a maximum of paths and trails.
Difficult in dry weather and very difficult in wet weather.
The Pihem Ravine and the Fields of Avroult
16.91 mi
+961 ft
-942 ft
7 hrs
Very difficult
Departure from Remilly-Wirquin (Pas-de-Calais)
Another long route to explore the Ravin de Pihem (the path has been remarkably well maintained: it’s superb in early August 2026). You’ll also follow a superb path at a place called ‘Les Champs d’Avroult’ before popping over to have a look at the old quarries at Cléty.
An easy walk that can be split into two sections.
The Bietz tour in Aire-sur-Lys
4.89 mi
+59 ft
-59 ft
2h 20
Easy
Departure from Aire-sur-la-Lys (Pas-de-Calais)
A pleasant and very easy hike around Le Bietz. You will pass through two hamlets in Aire-sur-la-Lys before returning to Moulin le Comte, following the Lys at the end of the route.
A bucolic escape between Aire and Mametz
6.47 mi
+62 ft
-62 ft
3h 00
Easy
Departure from Aire-sur-la-Lys (Pas-de-Calais)
This route follows the path known as the Bruveau d’Aire-sur-la-Lys, with a few variations. It takes you to the Church of Saint-Vaast in Mametz via the Glomenghem marshes, then back to the hamlet of Moulin-le-Comte via the Chemin de Fauquenthun in the hamlet of Rincq.
The Arbre Hardi from Blendecques
9.14 mi
+315 ft
-315 ft
4h 30
Moderate
Departure from Blendecques (Pas-de-Calais)
This route will take you through a variety of landscapes: the Plateau des Landes Regional Nature Reserve and the plain. It is a signposted trail maintained by the Pays de Saint-Omer Urban Community. This trail shares a few kilometres with the Longatte de Blendecques route.
From Reclinghem to Mont d'Erny
11.08 mi
+814 ft
-797 ft
5h 50
Difficult
Departure from Reclinghem (Pas-de-Calais)
Three lovely climbs and a long stroll across the plateau make for a walk surrounded by nature. A very hilly first section, followed by a long stretch along the heights before descending to Reclinghem with magnificent views. The icing on the cake is an optional circular loop I suggest, which brings the total elevation gain to over 300 m.
Le Puits sans Fond stream
7.28 mi
+361 ft
-354 ft
3h 40
Moderate
Departure from Fléchin (Pas-de-Calais)
A short walk that takes you up to the ridge before descending and going along the Puits sans Fond stream. More pleasant in dry weather, as some paths can be very wet.
The Wavrans Valley
7.35 mi
+574 ft
-545 ft
3h 55
Moderate
Departure from Esquerdes (Pas-de-Calais)
The Wavrans-sur-l'Aa nature reserve consists of two hillsides separated by a dry valley, Mont Carrière and Montagne d'Elnes. The chalky slopes of the reserve are steep and unusual for the region. They were also "sculpted" by the bombs of the Second World War.
Hugo Trail in Racquinghem
6.53 mi
+197 ft
-187 ft
3h 10
Easy
Departure from Racquinghem (Pas-de-Calais)
This route will take you through several different types of landscape: the Plateau des Landes regional nature reserve, the plain and the Neuffossé Canal. The latter separates the Pas-de-Calais department from the Nord department.
It is a marked trail maintained by the Pays de Saint-Omer Urban Community.
On the plateau between the Lys and the Aa
15.76 mi
+912 ft
-922 ft
8h 00
Difficult
Departure from Dennebrœucq (Pas-de-Calais)
A long route with a significant elevation gain on paths that are generally in very good condition.
The Fontinettes boat elevator
5.86 mi
+49 ft
-49 ft
2h 45
Easy
Departure from Arques (Pas-de-Calais) (Pas-de-Calais)
The Sentier des Fontinettes invites you to discover the often overlooked natural riches of Arques: from the Étang de Beauséjour to the Étang de Malhôve, via the Forêt de Rihoult (forest) and the canal towpath, not forgetting the nautical base and boat lift.
Le Puits sans Fond depuis Febvin-Palfart
6.42 mi
+423 ft
-407 ft
3h 20
Moderate
Departure from Febvin-Palfart (Pas-de-Calais)
C’est un parcours en pleine nature. Sur les hauteurs, le randonneur apercevra l’Audomarois, les Monts des Flandres et le bassin minier. C'est un sentier balisé de la Communauté d'Agglomération du Pays de Saint-Omer.