4.5
(1738)
10,346
hikers
691
hikes
Hiking around Saint-Omer offers diverse outdoor experiences within the Pas-de-Calais department of northern France. The region is characterized by the extensive Marais Audomarois wetlands, a UNESCO-recognized biosphere reserve, and the large Forêt de Clairmarais. These landscapes provide a network of trails through watercourses, canals, and woodlands.
Last updated: May 10, 2026
4.7
(117)
481
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.5
(74)
250
hikers
8.82km
02:13
10m
10m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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4.1
(23)
70
hikers
11.0km
03:00
160m
160m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.8
(12)
41
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.8
(59)
480
hikers
6.03km
01:32
10m
10m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.8
(48)
319
hikers
5.65km
01:26
10m
10m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.8
(51)
317
hikers
11.1km
02:48
20m
20m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.7
(31)
243
hikers
6.35km
01:36
10m
10m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.6
(41)
182
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.8
(30)
159
hikers
9.81km
02:29
20m
20m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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Popular around Saint-Omer
Hiking around Etangs Du Romelaëre
Hiking around Clairmarais
Hiking in Réserve Naturelle Nationale Du Platier D'Oye
Hiking around Oye-Plage
Hiking around Saint-Omer-Capelle
Hiking around Forêt Domaniale de Riboult-Clairmarais
Hiking around Offekerque
Hiking around Vieille-Église
Hiking around Nouvelle-Église
Hiking around Serques
In the vicinity of the chapel, in clear weather, you have a beautiful view. To the north, you can see Cap Blanc Nez and even the cranes of the port of Dunkirk. To the south, you also have a beautiful view of the hilly hinterland.
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This former water mill was built at the end of the 18th century with stones from the castle ruins that once belonged to Anton of Burgundy. Proof of this can be found on a lintel bearing the coat of arms and motto ‘Nul ne s’y frotte’ (nobody touches it) of Anton of Burgundy. Anton of Burgundy (1421-1504) was knighted into the Order of the Golden Fleece. The typical chain of this order is also visible on the lintel around the shield.
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Here on the Opal Coast in France at Oye Plage near Grand Fort Philippe are the historical remains of the German positions from World War II.
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nature reserve where you can take a short circular walk (1 hour) and go to the observatory
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There are over 690 hiking routes available around Saint-Omer, catering to various difficulty levels. The komoot community has contributed significantly, with over 9,800 hikers exploring the area and leaving more than 1,600 reviews.
The terrain around Saint-Omer is incredibly diverse. You'll find extensive wetlands, particularly in the UNESCO-recognized Marais Audomarois, with intricate networks of watercourses and market gardens. There are also dense woodlands in the Forêt de Clairmarais, and even coastal dunes and marshes near the Platier d'Oye National Nature Reserve. The region is generally flat, especially in the marshlands, but some areas within the Parc Naturel Régional des Caps et Marais d'Opale offer gentle hills and varied landscapes.
Yes, Saint-Omer offers many easy and family-friendly routes. For instance, the Le marais audomaroiss loop from Clairmarais is an easy 7.6 km trail exploring the unique marshland. The Romelaëre Ponds Nature Reserve also features easily accessible paths like the 4 km Cormorant Trail, perfect for nature observation with children. The Saint-Omer Public Garden also provides pleasant walking paths within the town.
Many trails in the Saint-Omer region are dog-friendly, especially those in the larger natural areas like the Forêt de Clairmarais and parts of the Marais Audomarois. However, it's always recommended to keep dogs on a leash, particularly in nature reserves such as the Romelaëre Ponds or Platier d'Oye, to protect local wildlife. Always check local signage for specific restrictions.
Yes, many of the popular hikes around Saint-Omer are circular routes. Examples include the Le marais audomaroiss loop from Clairmarais, the Platier d'Oye Loop, and the Saint-Omer loop around the city center. These loops offer convenient starting and ending points, often returning you to your original location.
Hikers can discover a wealth of natural beauty and historical landmarks. The Romelaëre Ponds Nature Reserve is a highlight for birdwatching, while the Platier d'Oye National Nature Reserve offers coastal dunes and migratory bird spotting. You can also encounter historical sites like the Écardines Bunkers or the impressive Boat Lift of Fontinettes, which blends nature with industrial heritage.
Yes, for those seeking a longer adventure, the Tour of the Audomarois Trail is a multi-day hike (typically 6-7 days) that explores the regional natural park. This trail offers an immersive experience through the diverse landscapes of the Audomarois marsh and surrounding areas.
Parking is generally available at popular trailheads and nature reserves. For example, you'll find designated parking areas near the Romelaëre Ponds Nature Reserve in Clairmarais, and at various access points to the Forêt de Clairmarais. For routes starting within Saint-Omer, public parking facilities are available in the town center. Always check specific route descriptions for detailed parking information.
Saint-Omer is accessible by train, with the Saint-Omer station serving as a hub. Local bus services connect Saint-Omer to surrounding villages, which can provide access to some trailheads. However, for more remote starting points, a car might be necessary. It's advisable to check local bus schedules in advance for specific routes.
Spring and autumn are generally the best times for hiking in Saint-Omer. In spring, the wetlands and forests burst with new life and vibrant colors, while autumn offers beautiful foliage. Summer can also be pleasant, especially in shaded forest areas, but be prepared for potentially warmer temperatures. Winter hikes are possible, particularly in the marshlands, but paths can be muddy, and some facilities might have reduced hours.
The area is highly rated by the komoot community, with an average score of 4.5 stars. Reviewers often praise the unique and tranquil atmosphere of the Marais Audomarois, the rich biodiversity, and the well-maintained paths through the Forêt de Clairmarais. Many appreciate the variety of trails, from easy strolls to longer excursions, and the opportunity for birdwatching.
Yes, the Audomarois marsh offers unique experiences. The Booneghem trail, for example, is a family-friendly 6 km hike that crosses the marsh and includes the unique experience of crossing the Zieux canal by chain ferries. Another route, From one bank to the other – Ferry crossing loop from Clairmarais, also features these charming hand-pulled ferries, providing a distinctive way to explore the waterways.


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