4.6
(312)
1,968
riders
239
rides
Mountain biking around Etangs Du Romelaëre offers diverse terrain within the wider Audomarois region, characterized by an aquatic environment of interconnected ponds, rivers, and channels. While mountain biking is prohibited within the immediate Étangs du Romelaëre National Nature Reserve, the surrounding Audomarois marshlands and the Parc naturel régional des Caps et Marais d'Opale provide extensive opportunities. The landscape features a mix of wet meadows, peaty woodlands, and forest paths, with routes often utilizing both paved and unpaved segments.
Last updated: July 2, 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.
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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5.0
(5)
7
riders
15.0km
01:08
90m
90m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
6
riders
21.1km
01:27
190m
190m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
5.0
(3)
88
riders
103km
08:32
1,340m
1,340m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
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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.
5
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Imposing church in the town.
3
0
No, mountain biking is explicitly prohibited within the Étangs du Romelaëre National Nature Reserve to protect its delicate ecosystem. However, the wider Audomarois region around Saint-Omer and Clairmarais offers numerous mountain biking opportunities.
There are over 230 mountain bike trails available in the broader region surrounding Etangs Du Romelaëre, catering to various skill levels. This includes 80 easy routes, 138 moderate routes, and 17 difficult routes.
The terrain in the wider Audomarois region is diverse, featuring a unique aquatic environment with interconnected ponds, rivers, and channels. You'll encounter a mix of wet meadows, peaty woods, and forest paths. Routes often utilize both paved and unpaved segments, offering varied landscapes for mountain bikers to explore.
Yes, there are 80 easy mountain bike routes in the area. An example of an easy route is the Lansberghe Path – Rihoult-Clairmarais Forest loop from Clairmarais, which is 20.2 miles (32.6 km) long and leads through the Rihoult-Clairmarais Forest.
Yes, many routes in the area are circular. For example, the The Éperlecques Blockhaus – a travers foret loop from Houlle is a difficult 41.0 miles (66.1 km) loop, and the Along the Houlle River – Lansberghe Path loop from Watten is a moderate 34.7 km loop.
The region's marshland and forest paths can be enjoyed throughout much of the year. Spring and autumn offer pleasant temperatures and vibrant scenery. During wetter periods, some unpaved sections might be muddy, so checking trail conditions beforehand is advisable. Summer can also be good, especially in the shaded forest areas.
While mountain biking is outside the reserve, the surrounding area offers glimpses of the unique aquatic environment. You might encounter highlights such as the Romelaëre Ponds Observatory (viewable from outside the reserve), the Chain tray waterways, or even a peat bog, reflecting the region's unique natural heritage.
Yes, with 80 easy routes available, there are plenty of options suitable for families. These trails often feature flatter terrain and shorter distances, allowing for a more relaxed cycling experience. The Lansberghe Path – Along the Houlle River loop from Watten is an easy 16.8 km route that could be suitable for families.
Generally, dogs are welcome on many public trails in the wider Audomarois region, especially on forest paths. However, it's always best to keep them on a leash and check local signage for specific restrictions, particularly in sensitive natural areas or near private land. Remember to respect wildlife and clean up after your pet.
Parking is typically available in towns and villages surrounding the reserve, such as Clairmarais, Houlle, or Watten, which serve as common starting points for many routes. Look for designated parking areas near trailheads or in village centers.
The main towns in the Audomarois region, like Saint-Omer, are accessible by public transport. From there, local bus services might connect to smaller villages closer to trailheads. However, options for transporting bikes on public transport can be limited, so checking specific bus line policies in advance is recommended.
The mountain bike trails in the Etangs Du Romelaëre area are highly rated by the komoot community, with an average score of 4.6 stars from over 390 reviews. More than 2200 mountain bikers have used komoot to explore the varied terrain, often praising the diverse forest paths and the unique aquatic environments found in the wider region.


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