4.4
(720)
4,213
riders
40
rides
No traffic touring cycling routes in Réserve Naturelle De Grande-Synthe traverse a diverse landscape characterized by flat terrain, artificial lakes, and extensive wooded areas. The reserve is divided into two main sectors: Puythouck, featuring a 28-hectare artificial lake and diverse woodlands, and Prédembourg, a significant wetland area with dense shrubland and woodlands. These natural features provide varied backdrops for cycling, with many routes featuring mostly paved surfaces suitable for touring cyclists.
Last updated: July 9, 2026
5.0
(7)
15
riders
12.4km
00:44
20m
20m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
4.7
(15)
99
riders
33.9km
02:04
40m
40m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.0
(1)
8
riders
17.0km
01:06
20m
20m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
6
riders
6.33km
00:27
10m
10m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
4
riders
7.62km
00:26
10m
10m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Réserve Naturelle De Grande-Synthe
Beautiful views of the former fortress.
4
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A must-see for reaching the coast from Bergue.
3
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A must-see for reaching the coast from Bergue. The gravel roads are in perfect condition and suitable for gravel bikes or mountain bikes.
4
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Beautiful place that invites you to stroll and linger
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Beautiful path in the forest through poplars, alders, willows and ash trees. Formerly a marshy area the wood has been developed by the city to create a horticultural area.
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The Basse-Colme Canal is a French canal that connects Bergues with Hondschoote. It is part of the Canal de la Colme. From Hondschoote, on Belgian territory, the continuation of this canal is called the Bergues Canal (Dutch: Bergenvaart).
5
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Medieval wall and ditches with canals.
2
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We passed close to this garden. Forbidden to bicycles, we did not visit it
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There are over 50 dedicated no traffic touring cycling routes in Réserve Naturelle De Grande-Synthe. These routes cater to various fitness levels, with 32 easy and 18 moderate options, ensuring a suitable ride for most cyclists.
The majority of touring cycling routes in Réserve Naturelle De Grande-Synthe are classified as easy or moderate. For example, the Jardin Public, Grande-Synthe 🌳 loop from Grande-Synthe is an easy 12.4 km ride with minimal elevation. There are also moderate routes like the Watten Hill loop from Brouckerque, which covers 34 km with slightly more elevation.
Yes, many routes in the reserve are circular, offering convenient starting and ending points. An example is the Top! – Étang de la Ferme Galamé loop from Loon-Plage, an easy 17 km circular tour.
The reserve offers diverse landscapes. You'll cycle through wooded areas, past the 28-hectare artificial lake in the Puythouck sector, and alongside wetlands in Prédembourg. The area is rich in flora, including sandy grasslands and medicinal plant gardens, providing a varied and engaging backdrop for your ride.
Yes, the reserve is well-suited for family cycling, especially given the prevalence of easy, no-traffic routes and mostly paved surfaces. The minimal elevation gain on many paths makes them accessible for all ages. The Puythouck sector, with its discovery trail and experimental orchard, offers additional points of interest for families.
Réserve Naturelle De Grande-Synthe is a biodiversity hotspot. Cyclists can often spot a variety of birds, especially in the Prédembourg wetland area, which is a significant migratory stopover. Amphibians like the natterjack toad, various dragonflies, butterflies, and even bats have been identified in the reserve, offering excellent opportunities for nature observation.
The area is highly rated by the komoot community, with an average score of 4.4 stars from over 690 ratings. Reviewers often praise the quiet, traffic-free nature of the routes, the diverse natural scenery, and the well-maintained paths that make for a relaxing and enjoyable touring experience.
Within the reserve, you can explore the Puythouck sector with its large artificial lake and extensive woodlands. There are also medicinal plant gardens with over 300 varieties, and an experimental orchard. The Prédembourg sector is notable for its role as an ecological corridor and a prime spot for birdwatching.
The reserve is enjoyable throughout the year, but spring and autumn offer particularly pleasant conditions with milder temperatures and vibrant natural scenery. These seasons are ideal for observing migratory birds and the diverse flora without the extremes of summer heat or winter chill.
Yes, for those looking for longer rides, there are moderate routes available. For instance, the Carnot Powder Magazine, Ramparts – Porte aux Boules loop from Loon-Plage is a 56.3 km route, offering a more extended exploration of the region's landscapes.
Réserve Naturelle De Grande-Synthe is part of a larger "Cycling Country" in Terre de Flandre. For more information on the extensive network of routes beyond the immediate reserve, you can visit the Terre de Flandre Tourisme website.


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