2
riders
04:41
74.1km
530m
Cycling
This difficult 46.0-mile touring cycling loop from Audruicq explores the diverse landscapes of the Réserve biologique dirigée de Long Chêne.
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Parking
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7.18 km
Highlight • Other
Tip by
13.7 km
Highlight • Historical Site
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17.3 km
Highlight • Summit
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31.1 km
Highlight • Other
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38.3 km
Highlight • Monument
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56.7 km
Highlight • Trail
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61.1 km
Highlight • Religious Site
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74.1 km
End point
Parking
Way Types & Surfaces
Way Types
50.2 km
8.68 km
6.62 km
6.43 km
1.50 km
737 m
Surfaces
35.8 km
30.0 km
5.01 km
1.79 km
1.50 km
< 100 m
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Elevation
Highest point (90 m)
Lowest point (0 m)
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Weather
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Friday 22 May
30°C
16°C
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This route was planned by komoot.
This challenging touring bicycle loop, covering 74.1 kilometers with an elevation gain of 530 meters, generally takes around 4 hours and 41 minutes to complete. This duration assumes a good fitness level, as it's classified as a 'Hard bike ride'.
This route is classified as difficult and is considered a 'Hard bike ride'. It requires 'Very good fitness' due to its length, elevation gain, and varied terrain. Be prepared for some segments where you might need to push your bike.
The terrain on this loop is quite varied. While much of the Parc naturel régional des Caps et marais d'Opale features paved routes, this specific loop includes segments that may be unpaved and difficult to ride. You should be prepared for diverse surfaces and potentially needing to push your bike through some sections.
While specific parking details for Audruicq are not provided, as a common starting point for the loop, you would typically look for public parking areas within the town. It's advisable to check local maps or municipal websites for designated parking zones in Audruicq before your visit.
No, there are generally no specific permits or entrance fees required to cycle this route or to access the Parc naturel régional des Caps et marais d'Opale. However, as it passes through the Réserve biologique dirigée de Long Chêne, always respect local regulations regarding protected natural areas.
The route offers several interesting points. You can enjoy a Panorama sur Muncq Nieurlet, visit the historical Blockhaus d'Éperlecques Memorial, and pass by Watten Hill. Other highlights include the Boat Lift of Fontinettes and the Saint-Wandrille Church, Bayenghem-lès-Éperlecques.
You'll experience diverse and picturesque landscapes within the Parc naturel régional des Caps et marais d'Opale. Expect to see impressive cliffs, verdant valleys, extensive marshes, and dense forests. The Réserve biologique dirigée du Long Chêne itself is located within the Rihoult-Clairmarais national forest, providing a rich, natural, and biodiverse setting throughout your ride.
Given the varied terrain and the potential for unpaved sections, the best time to cycle this route would likely be during the drier months of late spring, summer, or early autumn. This avoids the wettest periods when unpaved sections could become very muddy and more challenging.
No, this cycling route is not recommended for families or beginners. It is classified as a 'Hard bike ride' requiring 'Very good fitness' and includes segments that are unpaved and difficult, potentially requiring you to push your bike. It's best suited for experienced touring cyclists looking for a significant physical challenge.
While the Parc naturel régional des Caps et marais d'Opale generally welcomes visitors, specific regulations for dogs on cycling routes, especially within a 'Réserve biologique dirigée' (managed biological reserve), can vary. It's always best to keep dogs on a leash and check for any specific signage or local rules within the Réserve biologique dirigée de Long Chêne to ensure compliance and protect wildlife.
Yes, this route intersects with several other paths. You'll find sections that overlap with the Tour de l'Audomarois, Les 3 Cayelles, and parts of the EuroVelo 5 - Via Romea Francigena. It also briefly touches the North Sea Route and the Via Francigena France 01, Calais - Arras.
The main challenge lies in the varied terrain, with some unpaved and difficult segments where you might need to push your bike. An insider tip would be to ensure your touring bicycle is robust enough for mixed surfaces and to carry a repair kit. Also, consider starting early to allow ample time, especially if you anticipate slower progress on the tougher sections.