4.6
(273)
1,564
riders
65
rides
Aizier no traffic bike trails traverse the diverse landscapes of the Parc Naturel Régional des Boucles de la Seine Normande, characterized by the majestic Seine River and its valley. The region features undulating terrain, dense woodlands, and the unique Marais Vernier, France's largest peat bog. Touring cyclists can explore routes along the Seine's banks, offering panoramic views of limestone hillsides and traditional villages.
Last updated: May 24, 2026
4.8
(8)
34
riders
47.8km
03:01
360m
360m
Cycle a moderate 29.7-mile loop from Aizier through Parc Naturel Régional des Boucles de la Seine Normande, visiting historic sites.
4.2
(12)
104
riders
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.0
(1)
8
riders
51.0km
03:30
500m
500m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
12
riders
33.1km
02:05
290m
280m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
11
riders
16.9km
00:59
60m
60m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Aizier
When we encounter the patronage of Saint Thomas, most people outside Great Britain probably think involuntarily of the time of Christ, some two thousand years back. This is because one of the twelve apostles whom Jesus called to follow him bears this name. In the Gospels, he is known as "Didymos," which means "twin" in Greek. In this case, however, the chosen patronage refers to Saint Thomas Becket (1118–1170), also known as Thomas of Canterbury after the place of his episcopal see and martyrdom. Canterbury Cathedral (Kent, England) can be visited—at least virtually—via the komoot system at the following link: =>> https://www.komoot.com/de-de/highlight/231266
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The 3 bridges between Le Havre and Rouen (Normandy, Tancarville and Brotonne (the latter quite dangerous for bicycles) are very high because they have to allow passage of large tonnage boats intended to supply Paris, the Seine being an important component. These boats are then unloaded in Rouen onto smaller tonnage boats which go to Paris. This system of ferries, surprisingly free, is therefore there to compensate for this lack of possible crossings. Do not hesitate to use them, it is really a very nice plus.
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Beautiful walk that gives a good and beautiful impression of nature and its inhabitants
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To avoid the extremely high bridges over the Seine, we chose the ferry. We enjoyed the crossing – completely uncomplicated and pleasant. I took photos of the departure times.
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A new observatory has been open at the Grand'Mare de Sainte-Opportune since April 2025. (The old one was damaged during a storm.) A must-see for bird lovers and those who love nature. The cottage route is very pleasant, and you can enjoy an unforgettable 30-km tour.
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The Grand'Mare observatory (free) has been renovated and rebuilt for a few months after two years of work. It's a magnificent view of the birds returning en masse, and luckily, the horses roaming free. Pure bliss.
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Route with pretty thatched cottages and very beautiful ruins at the bend in the path.
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There are over 60 dedicated no traffic touring cycling routes around Aizier, catering to various skill levels. You'll find approximately 17 easy routes, 38 moderate routes, and 7 more challenging options.
The routes frequently follow the banks of the Seine River, offering grandiose panoramas of cliffs and limestone hillsides. You'll also cycle through the unique Marais Vernier, France's largest peat bog, and find paths shaded by forests and woodlands. The terrain is often undulating, providing scenic views over the Seine valley.
Yes, Aizier offers several easy, flat, and well-laid-out routes suitable for families. For example, the Château d'Ételan – Old lock loop from Norville is an easy 16.9 km route with minimal elevation gain, perfect for a relaxed family outing.
Many routes pass by charming villages and natural highlights. You might encounter traditional thatched cottages, known as Les Chaumières, or the picturesque Old Port. The Saint-Thomas-Becket Chapel ruins are also a historical point of interest on some paths. For wildlife viewing, the La Grand-Mare Observation Tower in Marais Vernier offers a chance to see diverse bird species.
Yes, many routes are designed as loops. A popular option is The Seine by Bike: Thatched Cottages Loop, a moderate 47.7 km route that takes you through the Parc Naturel Régional des Boucles de la Seine Normande and past historic sites.
Spring and autumn generally offer the most pleasant conditions for touring cycling, with mild temperatures and beautiful scenery. The vibrant greenery of spring and the rich colors of autumn enhance the experience, especially along the Seine and through the woodlands. Summer can also be enjoyable, but it's advisable to start earlier in the day to avoid the midday heat.
The komoot community rates the touring cycling routes around Aizier highly, with an average score of 4.5 stars. Reviewers often praise the tranquility of the traffic-free paths, the stunning views of the Seine valley, and the unique natural environment of the Marais Vernier. The charming traditional villages and historical sites along the way are also frequently highlighted.
Yes, for experienced cyclists seeking a challenge, there are several difficult routes. The Old Port – Saint-Thomas-Becket Chapel loop from Aizier is a demanding 51 km route with significant elevation gain, offering a more strenuous ride through varied terrain.
While Aizier itself is a smaller community, the broader Seine-Eure region is part of the 'La Seine à Vélo' network, which aims to provide eco-friendly access. For specific public transport options to trailheads, it's recommended to check local transport schedules, as services can vary. Some routes, like those starting directly from Aizier, are easily accessible if you're staying locally.
Parking is typically available in or near the starting points of many routes, especially in villages like Aizier or Vieux Port. Look for designated parking areas in town centers or near popular attractions that serve as trailheads. Specific parking information can often be found in the route details on komoot.
Aizier is a key point on the major 'La Seine à Vélo' cycling itinerary, which connects Paris to the sea (Le Havre or Deauville). While this guide focuses on local no-traffic loops, you can integrate these shorter routes into longer journeys along this significant regional cycling path.
The Marais Vernier, a protected Ramsar site, is a haven for diverse wildlife. Cyclists might spot various bird species, including ospreys, grey herons, peregrine falcons, and white storks. You may also encounter 'marsh gardeners' such as Highlands Cattle and Camargue horses, which help maintain this unique ecosystem.


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