4.3
(157)
6,346
riders
69
rides
No traffic road cycling routes in Réserve Naturelle De Grande-Synthe traverse a diverse landscape of 174 hectares, integrating areas like Grand-Prédembourg, Petit-Prédembourg, and Puythouck. The region features a 28-hectare artificial lake, extensive wooded sections with oak, beech, and chestnut trees, alongside sandy lawns and wetlands. These natural environments provide varied scenery for road cyclists, offering a mix of open and shaded paths. The reserve acts as a green lung for Grande-Synthe, ensuring well-maintained routes within a preserved natural setting.
Last updated: July 9, 2026
20
riders
80.2km
03:11
260m
260m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
17
riders
35.8km
01:25
110m
110m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

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16
riders
86.4km
03:21
260m
260m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
16
riders
121km
05:16
690m
690m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
11
riders
110km
04:36
560m
560m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
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Popular around Réserve Naturelle De Grande-Synthe
Tendentially only accessible on weekend afternoons. The gardens too.
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Founded in 1889, this abbey was built in the Gothic style. Listed as a Historic Monument, it consists of several buildings, including two castles. Today, it is home to around twenty Benedictine nuns of all ages. The monastery is partially open to the public: the abbey church, parlor, and shop are accessible.
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The Porte d'Aire in Cassel is one of the historic city gates that is part of the old defensive wall of the city. This gate is known for its Gothic architecture and is an important historical monument. The Porte d'Aire is located on the southern side of the city and is one of the four gates that are still preserved from the medieval city walls. The gate has a characteristic serrated edge and is decorated with a carved coat of arms and a red inscription.
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Antoine Demoitié was a Belgian cyclist who tragically died during the Gent-Wevelgem cycling race in 2016. He fell after 115 kilometers of racing and was then hit by a motorcycle. Demoitié was taken to the hospital in Lille in critical condition, where he later died of his injuries. A memorial stone has been erected in memory of Antoine Demoitié in Sainte-Marie-Cappel.
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There are over 75 dedicated no-traffic road cycling routes in Réserve Naturelle De Grande-Synthe, offering a wide range of options for all skill levels. You'll find routes varying from easy to difficult, ensuring there's something for every cyclist.
The routes primarily feature paved surfaces, making them ideal for road bikes. You'll cycle through diverse landscapes including extensive wooded areas, along the tranquil shores of the Lac du Puythouck, and past sandy lawns and wetlands. While generally flat, some routes may include gentle undulations, particularly those extending towards the wider region.
Yes, Réserve Naturelle De Grande-Synthe offers several easy no-traffic road cycling routes perfect for families. These routes are typically shorter and have minimal elevation gain, allowing for a relaxed and enjoyable experience for all ages. The well-maintained paths around features like the Lac du Puythouck are particularly suitable.
Cyclists can enjoy the scenic Lac du Puythouck, extensive wooded sections in Puythouck and Petit-Prédembourg, and areas showcasing the reserve's rich biodiversity. You might also encounter the pedagogical orchard and medicinal plant gardens, offering interesting stops along your ride.
The area is highly rated by the komoot community, with an average score of 4.3 stars from over 145 ratings. Reviewers often praise the peaceful, car-free environment, the well-maintained paved surfaces, and the diverse natural scenery that makes for a refreshing escape within the region.
While many routes focus on the reserve itself, some extend further into the surrounding region, offering longer distances. For example, the Lynck bridge – Mont de Watten loop from Grande-Synthe is a challenging route over 120 km long, providing an extensive car-free cycling experience.
The Réserve Naturelle De Grande-Synthe is designed for accessibility, and there are generally designated parking areas near the main entrances and key points like the Lac du Puythouck. These spots provide convenient access to the network of cycling paths.
Yes, the reserve is integrated into the urban fabric of Grande-Synthe, making it accessible via public transport. Local bus services often have stops near the reserve's entrances, allowing cyclists to reach the starting points of the no-traffic routes without a car.
Many of the no-traffic road cycling routes in Réserve Naturelle De Grande-Synthe are designed as circular loops, allowing you to start and end your ride at the same point. An example is the Channel – Lake loop from Grande-Synthe, which offers an easy, scenic ride around the lake and canal areas.
The reserve is enjoyable for road cycling throughout the warmer months, typically from spring to early autumn. During these periods, the weather is generally mild, and the natural landscapes are at their most vibrant. Always check local weather forecasts before heading out.
Given its location as a 'green lung' within Grande-Synthe, you'll find amenities, including cafes and restaurants, in the nearby urban areas. The Lac du Puythouck area, in particular, often has facilities due to its recreational focus, including a sailing club.


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