5.0
(2)
12
riders
7
rides
Gravel biking around Marais-Vernier offers a unique experience through France's largest peat bog, located within the Regional Natural Park of the Loops of the Seine Normande. The region is characterized by flat, open wetlands, traditional "courtils," and a network of paths alongside drainage canals, providing varied unpaved segments. Riders can explore a mix of surfaces, from marshlands to rural countryside with thatched-roof houses and apple orchards, often with views of the Seine River. This diverse terrain makes it well-suited for…
Last updated: May 7, 2026
5.0
(2)
2
riders
28.4km
01:55
330m
330m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
20.3km
01:29
270m
270m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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2
riders
34.1km
02:13
370m
370m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
1
riders
30.6km
02:26
450m
450m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
12.8km
00:56
150m
150m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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A magnificent hike, alone in the world, with lush vegetation and plenty of wildlife. Very enjoyable!
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wetland where egrets and storks often land
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The Saint-Ouen church in Pont-Audemer, imposing although unfinished, is one of the foremost monuments of flamboyant Norman architecture.
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Small church in the town of Port Audemer
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Discover the Departmental Museum of Resistance and Deportation located in the magnificent Saint-Nicolas chapel (17th century). This museum was inaugurated in 1979 to perpetuate the memory of our liberators. Objects and documents that bear witness to a dark period in our history are brought to light. This collection bears witness to the courage of men and women who fought for freedom. The Maquis Surcouf, founded by Robert Leblanc, was the most active Resistance network in Normandy.
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There is a very nice little street between rue de la République and rue Sadi Carnot, it is rue Paul Clémencin. To have
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The ancient theater of Juliobona is the ancient theater of Lillebonne. This impressive monument, built in the 1st century then enlarged and fortified, is one of the largest and best preserved Roman theaters north of the Loire. You will be able to discover the remains of the stage, the orchestra and the stands, and imagine the shows that took place there: dramas, comedies, gladiator fights and religious ceremonies. You can also enjoy the panoramic view of the city and the Seine valley from the top of the theater. The site is open every day from 10 a.m. to 6 p.m. and entry is free. Don't miss this opportunity to discover a part of Normandy's ancient history!
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There are 5 gravel bike trails documented in Marais-Vernier, offering a range of experiences through the region's unique landscapes.
While all listed routes are rated moderate or difficult, the Marais-Vernier region features extensive flat terrain within its marshlands, making it suitable for less experienced riders on its quieter roads and paths. The Fontaine saint denis loop from Notre-Dame-de-Gravenchon is the shortest at 12.8 km, offering a good starting point.
The Marais-Vernier region offers a diverse mix of surfaces. You'll encounter flat, open wetlands, paths alongside drainage canals, and rural countryside roads. Some routes, particularly towards "la côte" in the west, may include more challenging climbs, while the marsh itself is generally flat. You can expect a blend of unpaved segments, from marshlands to traditional villages with thatched-roof houses and apple orchards.
Yes, all the gravel routes listed for Marais-Vernier are circular. For example, you can explore the Valasse Abbey – Valasse Abbey loop from Lillebonne or the Cycle Path Along the Risle – Les Ponts Gras loop from Le Perrey, both designed as loops for convenient riding.
The Marais-Vernier region is rich in natural and cultural sights. You can visit the Marais Vernier Viewpoint for panoramic views of the marsh, or explore the traditional Marais-Vernier Village and Thatched Cottages. The La Grand-Mare Observation Tower is excellent for birdwatching. Historical sites like the Juliobona Ancient Theatre are also accessible on some routes.
The Marais-Vernier, being a wetland, can be particularly beautiful in spring and autumn when migratory birds are abundant and the landscape colors change. However, conditions can vary, so checking local weather forecasts is always recommended, especially after heavy rains which might affect marshland paths.
Absolutely. The Marais-Vernier is a protected Ramsar-labeled nature reserve, known for its diverse fauna. It's a privileged stopping place on the main migratory route of Western Europe. You might spot storks, falcons, buzzards, owls, ospreys, grey herons, and white storks. Keep an eye out for Scottish Highland cattle and Camargue horses, which graze in the wet meadows for environmental management.
Yes, for experienced riders seeking a challenge, the Hudar single – Pont-Audemer loop from Pont-Audemer is rated as difficult. This 30.7 km route includes significant elevation changes, offering a more demanding experience through varied terrain.
The komoot community rates the gravel biking experience in Marais-Vernier highly, with an average score of 4.3 stars. Riders often praise the unique wetland landscapes, the tranquility of the marsh, and the opportunity to explore traditional villages and natural heritage away from busy roads.
Many routes in the Marais-Vernier region start from towns or villages like Pont-Audemer, Lillebonne, or Notre-Dame-de-Gravenchon, where public parking is generally available. For instance, the Juliobona Ancient Theatre – Lillebonne Parking loop from Lillebonne explicitly mentions parking in its starting point, indicating convenience for car access.
The gravel bike trails in Marais-Vernier vary in length and duration. You can find shorter routes like the Fontaine saint denis loop from Notre-Dame-de-Gravenchon at 12.8 km (approx. 1 hour), up to longer ones such as the Cycle Path Along the Risle – Les Ponts Gras loop from Le Perrey at 34.1 km (approx. 2 hours 15 minutes), or the Hudar single – Pont-Audemer loop from Pont-Audemer at 30.7 km (approx. 2 hours 25 minutes).


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