4.0
(13)
94
riders
25
rides
Gravel biking around Clairmarais offers diverse terrain across wetlands and forests. The region is characterized by the Marais Audomarois, a UNESCO biosphere reserve with over 700 kilometers of waterways, and the contrasting Forest of Clairmarais, providing shaded paths. This landscape features a mix of paved and unpaved surfaces, including gravel paths, making it suitable for various gravel biking experiences. The fertile loamy soil contributes to the unique natural environment found throughout the area.
Last updated: July 3, 2026
6
riders
101km
07:23
1,290m
1,290m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
7
riders
58.5km
03:40
460m
460m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.0
(2)
7
riders
22.2km
01:15
40m
40m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
7
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.5
(2)
11
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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"The Chapel of the Three Chairs" (cayelles in the local dialect) These are, on Wisques ceramics, the three seats of God, the Son, and the Holy Spirit. The existence of an oratory in the middle of the forest is lost in the mists of time. History even claims that the Druids held their assemblies there.
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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 for cycling to Clairmarais, which is approximately 2 km away
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here is an information board with all tourist information
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A shady spot with this chapel, I used to take a break there 20 years ago with my son. The place is always well-maintained, a tip: see it in March, it's dotted with daffodils 😉.
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Clairmarais offers a diverse mix of terrain, characterized by the unique Marais Audomarois wetlands and the contrasting Forest of Clairmarais. You'll find both paved and unpaved surfaces, including dedicated gravel paths, forest roads, and trails through fertile loamy soil. This variety provides options for different skill levels and preferences, from flat, easy rides to more challenging routes with varied elevation.
Yes, Clairmarais has several routes suitable for families. For a relaxed ride through scenic landscapes, consider the Lansberghe Path – Chestnut tree bridge loop from Saint-Omer, which is an easy 22.2 km (13.8 miles) path. The region's generally gentle terrain in many areas makes it accessible for various fitness levels.
Clairmarais is rich in natural beauty. You can explore the Romelaëre Ponds Nature Reserve, a UNESCO biosphere reserve known for its diverse wildlife and extensive waterways. The Romelaëre Nature Reserve Circuit offers a great way to experience this unique wetland environment. The Forest of Clairmarais also provides shaded paths and diverse flora.
Yes, beyond the natural landscapes, you can find interesting landmarks. The The Éperlecques Blockhaus – Rue du Fort Vesques loop from Watten – Éperlecques leads through historical areas. Other notable points of interest in the broader region include Cassel Village and the Boat Lift of Fontinettes, offering a glimpse into the area's heritage.
The spring and autumn months generally offer the most pleasant conditions for gravel biking in Clairmarais, with mild temperatures and beautiful scenery. While summer is also popular, some paths might be busier. Winter cycling is possible, but be prepared for potentially muddy conditions, especially in the wetland areas, due to the fertile loamy soil.
Yes, for experienced riders seeking a challenge, routes like the Greenway along the Aa – Lansberghe Path loop from Saint-Omer offer a difficult 58.1 km (36.1 miles) journey exploring extensive waterways and varied terrain. Another demanding option is The Marsh House – Le Moulin Pidoux loop from Tilques, a difficult 71.6 km (44.5 miles) route.
While the region is very nature-oriented, specific regulations for dogs on bike trails can vary. It's generally advisable to keep dogs on a leash, especially in nature reserves like Romelaëre, to protect local wildlife. Always check local signage or specific route descriptions for any restrictions regarding pets.
Many of the gravel biking routes in Clairmarais are designed as loops, allowing you to start and end at the same point. Examples include the Lansberghe Path – Chestnut tree bridge loop from Saint-Omer and the The Éperlecques Blockhaus – Rue du Fort Vesques loop from Watten – Éperlecques, providing convenient options for exploration.
The gravel biking routes in Clairmarais are highly rated by the komoot community, with an average score of 4.5 stars from more than 5 reviews. Riders often praise the unique combination of wetland and forest landscapes, the variety of terrain, and the peaceful atmosphere of the trails.
The town of Saint-Omer, near Clairmarais, has a train station (Saint-Omer station) which can serve as a gateway to the region. From there, local bus services or short rides can connect you to various starting points for gravel biking. It's recommended to check local transport schedules for the most up-to-date information.
While specific cafes directly on every trail might be limited, the villages and towns surrounding the Marais Audomarois, including Clairmarais itself and nearby Saint-Omer, offer various options for cafes, restaurants, and places to refuel. Many visitors also come to the area for its local vegetable production, so you might find opportunities for fresh produce.
For additional context and resources about cycling in the broader Audomarois region, you can consult the local tourism office. They often provide guides and information on facilities available for cyclists. You can find more details on their website: Audomarois Cyclists' Guide.


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