4.8
(12)
86
riders
51
rides
Mountain biking around Boissy-Le-Bois offers routes through the picturesque Vexin Regional Natural Park. The area is characterized by rolling hills, valleys, and woodlands, providing varied terrain for mountain bikers. Elevations in the region range from approximately 83 to 142 meters, indicating a landscape with gentle ascents and descents. These natural features create a suitable environment for exploring on two wheels.
Last updated: June 25, 2026
3.7
(3)
11
riders
49.6km
03:42
480m
480m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(1)
8
riders
17.1km
01:15
150m
150m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

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9
riders
38.7km
02:44
300m
300m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(1)
6
riders
21.1km
01:32
160m
160m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
5.0
(2)
7
riders
36.0km
02:47
350m
350m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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I would like to see a diplodocus come out from between the trees 🌳, the site gives off such a feeling of time.
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Great view, climbing and assured piloting
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Reilly Pond is surrounded by diverse wetland flora, such as angelica, waterhemp, and yellow loosestrife, which attract many insects and birds. A picnic area will allow you to relax and admire the landscape. Reilly Pond is part of a larger natural area, Reilly Marsh, which is an ancient peat bog sheltering rare plant and animal species. You can discover this space with a guide from the Hauts-de-France Conservatory of Natural Spaces who will reveal the secrets of this remarkable ecosystem. Reilly Pond is an ideal destination for nature lovers who wish to discover the beauty and diversity of the French landscapes.
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This is Sarah Bernhardt's house in Haravilliers, the former residence of the famous French actress and painter who built it in 1879. You can admire the architecture and decoration of the villa, which reflect her artistic tastes and his personality. You can also discover the garden and the surrounding area, where you can enjoy the nature and tranquility of the French Vexin.
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The trails around Boissy-Le-Bois are primarily located within the picturesque Vexin Regional Natural Park. You can expect a varied landscape characterized by rolling hills, valleys, and woodlands. Elevations in the region range from approximately 83 to 142 meters, offering a mix of gentle ascents and descents suitable for mountain biking.
There are 47 mountain bike trails available around Boissy-Le-Bois. This includes a good mix of difficulties, with 18 easy routes, 28 moderate routes, and 1 more challenging trail.
Yes, there are 18 easy mountain bike trails around Boissy-Le-Bois. A great option for a relaxed outing is the Lake loop from Fay-les-Étangs, which is 17.1 km long and offers a scenic ride around a lake. Another easy choice is the Lake loop from Fresne-Léguillon, spanning 21.1 km.
For those seeking longer or more moderate rides, the area offers 28 moderate trails. The Lavilltertre pond – Lavoir de Reilly loop from Thibivillers is a substantial 49.6 km route, exploring the local countryside. Another popular moderate option is the Lake loop from Chaumont-en-Vexin, which covers 38.7 km through varied terrain.
Yes, many of the mountain bike routes in the area are circular. Examples include the Lavilltertre pond – Lavoir de Reilly loop from Thibivillers, the Lake loop from Fay-les-Étangs, and the Lake loop from Chaumont-en-Vexin, all designed as loops for convenient exploration.
The trails often pass through the scenic Vexin Regional Natural Park, offering views of woodlands and rolling hills. You might encounter natural spots like the Viosne Springs Pond, known for its peaceful atmosphere and wildlife. The routes frequently incorporate water features and serene countryside landscapes.
Yes, the region is rich in history. You can find several historical sites near the trails, such as the ancient Dolmen des Trois-Pierres, the impressive Saint-Cyr Castle, and the historic Saint-Jean-Baptiste Church of Chaumont-en-Vexin. The Marcheroux Abbey is also in the vicinity, offering glimpses into the area's past.
The mountain bike trails around Boissy-Le-Bois are highly rated by the komoot community, with an average score of 4.5 stars from over 20 reviews. Riders often praise the varied terrain, the peaceful atmosphere of the Vexin region, and the well-maintained paths that cater to different skill levels.
The Vexin Regional Natural Park, with its woodlands and rolling hills, is generally enjoyable for mountain biking from spring through autumn. Spring offers lush greenery and pleasant temperatures, while autumn provides beautiful foliage. Summer is also suitable, though it's advisable to ride earlier in the day to avoid the midday heat.
While specific parking details vary by trailhead, routes often start from villages or points with public parking. For example, routes like the Lavilltertre pond – Lavoir de Reilly loop from Thibivillers typically begin in or near villages where parking facilities are available for visitors.
Yes, several routes incorporate water features. The Lake loop from Fay-les-Étangs and the Lake loop from Fresne-Léguillon are excellent examples, offering scenic rides around tranquil bodies of water. The Viosne Springs Pond is also a notable natural feature in the area.


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