4.6
(349)
1,927
riders
233
rides
Mountain bike trails around Clairmarais offer a diverse landscape for riders, characterized by the unique Audomarois marshlands and the extensive Rihoult-Clairmarais Forest. The terrain includes winding canals, flooded meadows, and shaded forest paths with varied tree species. Elevation changes are generally gentle, with some undulating ground within the forest areas, providing a mix of flat and slightly rolling routes. This region provides a natural environment suitable for various outdoor pursuits, including mountain biking.
Last updated: June 18, 2026
4.6
(8)
23
riders
23.6km
01:50
170m
170m
Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.
4.3
(7)
27
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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4.5
(4)
61
riders
59.8km
04:24
630m
630m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.0
(1)
9
riders
41.7km
02:50
200m
200m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
5.0
(1)
9
riders
18.2km
01:12
70m
70m
Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.
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After being closed for several years, the Saint-Omer train station has been given a facelift. The new, completely renovated building is dedicated to travelers, of course, but also to artists, craftspeople, entrepreneurs… La Station isn't just a station; it's "a space for innovation with a station inside." (c) https://nl.tourisme-saintomer.com/verwonderend/erfgoed-wonderen/meesterwerken-bewonderen/het-station-een-station-en-een-plaats-voor-innovatie/
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starting point for quite a few hikes
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ideal site for individual boating or guided tours - there is a guinguette with typical dishes
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here is an information board with all tourist information
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The church of Clairmarais was built in 1873, near the ruins of the former Cistercian abbey that gave the village its name. It replaced the abbey church that was destroyed during the French Revolution. The church is dedicated to Saint Bernard of Clairvaux, the spiritual father of the abbey. Today it is a landmark in the village and a silent witness to the religious heritage of this region. Note the coloured memorial to the dead next to the church.
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Imposing church in the town.
3
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There are over 220 mountain bike trails around Clairmarais, offering a wide range of options for different skill levels and preferences.
Mountain biking in Clairmarais offers a diverse landscape. You'll find trails winding through the unique Audomarois marshlands with their canals and flooded meadows, as well as shaded paths within the extensive Rihoult-Clairmarais Forest. The terrain generally features gentle elevation changes, with some undulating ground in the forest areas, providing a mix of flat and slightly rolling routes.
The trails around Clairmarais cater to various skill levels. There are over 60 easy routes, more than 140 moderate routes, and 16 difficult routes for those seeking a greater challenge. This variety ensures options for beginners to experienced riders.
While mountain biking in Clairmarais, you can explore the unique Audomarois marshlands, characterized by winding canals and reedbeds. The Romelaëre Ponds Nature Reserve is a haven for wetland species and diverse landscapes. You'll also ride through the ancient Rihoult-Clairmarais Forest, known for its variety of tree species. Other notable sights include the Boat Lift of Fontinettes and the Cassel Village.
Yes, Clairmarais offers several family-friendly mountain bike trails, particularly those that are rated as 'easy'. An excellent option is the Lansberghe Path – Rihoult-Clairmarais Forest loop from Clairmarais, which is an easy 20.2-mile (32.6 km) path winding through shaded forest trails, suitable for a pleasant family outing.
Yes, many mountain bike routes in Clairmarais are designed as loops. For example, the A lock – Saint-Omer station loop from Saint-Omer is a moderate 39.9-mile (64.4 km) trail that connects marshland areas. Another popular circular route is the Saint-Omer station – The Nature Barn loop from Saint-Omer, which is 20.2 miles (32.6 km) long and leads through natural areas.
Yes, some routes are accessible via public transport hubs. For instance, routes like the A lock – Saint-Omer station loop from Saint-Omer and the L'AA cycle path – Saint-Omer station loop from Saint-Omer start from the Saint-Omer station, making them convenient for those using public transport.
The area is highly rated by the komoot community, with an average score of 4.6 stars from over 300 reviews. Reviewers often praise the unique blend of marshland and forest environments, the well-maintained trails, and the opportunity to explore diverse natural sites. Many appreciate the tranquil and picturesque setting for their rides.
Yes, the broader Pays de Saint-Omer region, which includes Clairmarais, offers services such as mountain bike rentals and maintenance facilities to enhance the experience for riders. For more information on available services, you might find details on the local tourism website: tourisme-saintomer.com.
Clairmarais offers good mountain biking conditions throughout much of the year. Spring and autumn provide pleasant temperatures and vibrant scenery, with the marshlands and forests at their most picturesque. Summer is also suitable, especially on the shaded forest trails. While winter riding is possible, some marshland areas might be wetter.
Yes, for experienced riders seeking a challenge, there are 16 difficult routes available. An example is the L'AA cycle path – Saint-Omer station loop from Saint-Omer, which is a difficult 43.2-mile (69.6 km) route with significant elevation changes, offering a demanding ride through the region.
While many natural areas in France are dog-friendly, it's always recommended to check specific trail regulations, especially within protected areas like the Romelaëre Ponds National Nature Reserve. Generally, dogs are welcome on trails if kept on a leash, but always be mindful of wildlife and other trail users.


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