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Blendecques walks
The Arbre Hardi from Blendecques
Local authority
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.
The Fontinettes boat elevator
Visorando Member
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.
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.
Circuit d'Ecques par les landes
14.19 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.
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.
La Cuvette from Clamarais
10.60 mi
+49 ft
-49 ft
4h 55
Moderate
Departure from Clairmarais (Pas-de-Calais)
This route is divided between marshland, bocage and forest. It crosses Flanders before returning to the Audomarois region. In the first part of this itinerary, walkers will see street names in Flemish. This is a signposted trail of the Communauté d'Agglomération du Pays de Saint-Omer.
Discovering the Audomarois marshlands
4.26 mi
+7 ft
-10 ft
2h 00
Easy
Departure from Clairmarais (Pas-de-Calais)
A walk that combines crossing the Clairmarais market garden marsh with the Romelaëre Nature Reserve.Lots of birdwatching: ash herons, coots, storks... And the star attraction of this walk: crossing the canals on the chain ferries, which will appeal to young and old alike!Please note: chain ferries and drawbridges only operate from March 15 to September 5.
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.
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.
Ecou marsh “Marais d’Ecou” in Tilques
6.06 mi
+33 ft
-33 ft
2h 50
Easy
Departure from Tilques (Pas-de-Calais)
Houses, each with its own dock and boat moored on the Lansberg. People fishing practically from their homes. Cottages, each more beautiful than the last. Little market gardeners' boats loaded with crates of vegetables heading off to who knows where.Truly, the passage along the Lansberg will delight you with its beauty.You'll find a tranquil, picturesque feel that's rare in the region.
Le Lansbergue
3.65 mi
+23 ft
-23 ft
1h 40
Easy
Departure from Tilques (Pas-de-Calais)
This is a route through the heart of the Audomarois marshes along a marked trail maintained by the Pays de Saint-Omer Urban Community.
La Melde from Wittes
5.94 mi
+43 ft
-43 ft
2h 45
Easy
Departure from Wittes (Pas-de-Calais)
This route will allow you to discover the diversity of water in Wittes and Aire-sur-la-Lys. In Wittes, you will find the Melde, a tributary of the Lys. In Aire-sur-la-Lys, you will walk along the Lys, the Bassin des Quatre-Faces, the Ballastière ponds and the Canal de Neuffossé. This is a signposted trail maintained by the Communauté d'Agglomération du Pays de Saint-Omer.
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.
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!)
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.
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.
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.
From Buysscheure to the Booneghem Marshes
8.35 mi
+82 ft
-82 ft
3h 55
Moderate
Departure from Buysscheure (Nord)
Starting from the path to Paradis, in the shade of the hawthorn hedges, come and discover the large wet pastures, the Booenghem marsh and the nature barn. Then cross the Bachelin marshes and peat bogs before following the magnificent path that runs alongside the River Booneghem through the small marsh. This circular route mainly follows paths.
Le Bruveau
6.95 mi
+52 ft
-52 ft
3h 15
Moderate
Departure from Aire-sur-la-Lys (Pas-de-Calais)
During this walk, you will discover the Lys valley. On the way back, you will follow the course of the Lys before it is channelled in the eastern part of Aire. This is a signposted trail maintained by the Pays de Saint-Omer Urban Community.