4.6
(368)
1,337
riders
184
rides
Mountain biking around Mézy-Sur-Seine offers a diverse landscape characterized by the Seine river valley, rolling hills, and a mix of parkland and agricultural areas. The region features varied terrain suitable for mountain biking, from riverside paths to trails winding through local farmlands and small woodlands. Elevations are generally moderate, with some routes offering more significant climbs. This area provides a range of mountain bike trails for different skill levels.
Last updated: May 8, 2026
3.8
(14)
38
riders
24.4km
01:40
50m
50m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
5.0
(1)
3
riders
36.4km
02:58
390m
390m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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3.5
(2)
6
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(2)
3
riders
36.0km
02:53
430m
430m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(1)
4
riders
35.6km
02:55
470m
470m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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So a very steep climb over the rocks, which ends with steep drops. Good luck!
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Is it allowed to cross? Not sure... I did, I was looked at and greeted. But not blocked. However, it's not easy to get out on the other side, the exit is closed. It's possible to go through a small door.
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nice little passage in a green tunnel
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beautiful chateau, with a paved road in front
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Worth the detour for its gloomy and mysterious character at the same time…
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There are over 180 mountain bike trails in the Mézy-Sur-Seine area, offering a wide variety of options for different skill levels. This includes 58 easy routes, 115 moderate routes, and 14 difficult routes.
Yes, Mézy-Sur-Seine offers several easy mountain bike trails perfect for beginners or family outings. An excellent option is the Parc de l'Oseraie loop from Les Mureaux, an easy 15.1-mile (24.4 km) trail that provides a pleasant ride through parkland and along the Seine river.
The spring and autumn months generally offer the most pleasant conditions for mountain biking in Mézy-Sur-Seine, with mild temperatures and vibrant scenery. Summer can also be enjoyable, especially on shaded trails, but be mindful of warmer temperatures. Winter riding is possible, though some trails might be muddy or slippery after rain or frost.
Yes, many of the mountain bike trails around Mézy-Sur-Seine are circular, allowing you to start and finish at the same point. For example, the Ferme Les Bonnes Joies – Lavoir de sailly loop from Meulan - Hardricourt is a popular moderate circular route winding through agricultural landscapes and small villages.
The terrain around Mézy-Sur-Seine is diverse, characterized by the Seine river valley, gentle rolling hills, and a mix of parkland and agricultural areas. You'll find riverside paths, trails through farmlands, and routes winding through small woodlands. Elevations are generally moderate, with some routes offering more significant climbs.
Many trails in the Mézy-Sur-Seine region are suitable for riding with dogs, especially those that pass through open parkland or less crowded areas. However, it's always recommended to keep your dog on a leash, especially near agricultural land or wildlife, and to check local regulations for specific parks or nature reserves.
Yes, the region offers scenic views, particularly along the Seine river. You can also find interesting landmarks nearby. For example, the Old Washhouse of Rueil – Château de Jambville loop from Meulan - Hardricourt passes close to the historic Château de Jambville. Other highlights in the broader area include the Orangery Garden of the Château de Menucourt and the Sandy Beach at Île de Loisirs Val-de-Seine.
Parking is generally available near trailheads, especially in or around the villages and towns that serve as starting points for many routes. For routes starting from Les Mureaux or Meulan - Hardricourt, you can typically find public parking facilities. It's advisable to check specific starting points on komoot for detailed parking information.
The mountain bike trails around Mézy-Sur-Seine are highly rated by the komoot community, with an average score of 4.5 stars from over 360 reviews. Reviewers often praise the diverse landscape, the mix of riverside paths and woodland trails, and the options available for various skill levels.
While many trails are moderate, more experienced riders can find routes with greater elevation changes and technical sections. The Freeride area – The Vétheuil dome loop from Juziers, for instance, offers varied terrain including a designated freeride area, providing a more challenging experience.
Yes, the region offers several longer routes for those looking for extended rides. The Lavoir de sailly – Vexin Valley loop from Meulan - Hardricourt is a moderate 22.3-mile (35.9 km) trail that takes approximately 2 hours 50 minutes, providing a good option for a longer tour.


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