4.6
(654)
3,325
hikers
316
hikes
Hiking around Cormeilles-En-Vexin offers diverse landscapes within the Parc Naturel Régional du Vexin Français. The terrain features extensive woodlands, green valleys of rivers like the Sausseron and Viosne, and a mix of marshes, ponds, and hills. Geological diversity, shaped by ancient sea movements, contributes to unique soil compositions, including gypsum, sand, and clay deposits on hills like the Butte de Cormeilles.
Last updated: November 5, 2026
4.0
(8)
25
hikers
17.7km
04:41
160m
160m
4.5
(6)
30
hikers
19.7km
05:25
320m
320m
Hard hike. Very good fitness required. Easily walkable paths.

4.6
(7)
21
hikers
7.95km
02:07
80m
80m
Moderate hike. Good fitness required. Easily walkable paths.
4.7
(3)
13
hikers
15.4km
04:08
190m
190m
Moderate hike. Good fitness required. Easily walkable paths.
10
hikers
13.3km
03:32
130m
130m
Moderate hike. Good fitness required. Easily walkable paths.
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I looked for the old chestnut trees, but alas I saw nothing! Maybe I didn't take the right path. But on the side of the GR, a lot of barriers and signs “private property, no entry, traps, etc.,” made me not want to get off the trail!
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After you have walked through a bit of the forest you will arrive at this. With the sun there it really is a picture!
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When you come out of the forest near Le Heaulme, you will come across this little church dedicated to St. Georges
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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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Church in the French Vexin, Romanesque in construction, but repeatedly renovated in different styles such as the Gothic or Renaissance style.
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Church of Us, mixing Roman and Gothic style. While most churches in the region have a standard cruciform shape, this one is said to be asymmetrical. This means that where the South brace should be located (symmetrical to the North brace), there is a chapel. It is likely that the original southern brace was considered too narrow...while the current chapel is, on the contrary, too wide. Indeed, it is supported by 'only' the two original vaults, while it requires, by its shape and size, four. The result is a somewhat surprising architecture, with fairly random proportions and (very) sharp angles.
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There are over 300 hiking routes around Cormeilles-En-Vexin, offering a wide variety of options for all skill levels. This includes more than 110 easy routes, nearly 180 moderate trails, and around 25 challenging paths for experienced hikers.
The Vexin Français Regional Natural Park, where Cormeilles-En-Vexin is located, features diverse landscapes. You'll find extensive woodlands, green valleys carved by rivers like the Sausseron and Viosne, as well as marshes, ponds, and hills. The geological diversity, shaped by ancient sea movements, results in unique soil compositions, including gypsum, sand, and clay deposits on hills like the Butte de Cormeilles.
Yes, the region offers many family-friendly paths. With over 110 easy routes, you can find shorter, less strenuous walks suitable for all ages. The 'Sentiers du Patrimoine' (Heritage Trails) are also a great option, as they are designed to be accessible and reveal local history, often featuring points of interest that can engage children.
Generally, dogs are welcome on trails within the Vexin Regional Natural Park. However, it's always recommended to keep them on a leash, especially in areas with wildlife or near agricultural land, and to respect local signage. This helps protect the natural environment and ensures a pleasant experience for everyone.
Beyond the natural beauty, the region is rich in historical and cultural sites. You can explore various castles such as Château de Théméricourt or Château d’Auvers. Natural highlights include the Auversian Geological Site and various viewpoints like View of the Vexin. The 'Sentiers du Patrimoine' also guide you past wash houses, mills, and old farmsteads.
Yes, many routes in the area are circular, allowing you to start and end at the same point. An example is the moderate Montgeroult Castle loop from Boissy-l'Aillerie, which covers about 8.1 km. Another option is the Village d'Us – La Viosne loop from Us, a moderate 11.3 km trail.
The hiking trails around Cormeilles-En-Vexin are highly rated by the komoot community, with an average score of 4.6 stars from over 500 reviews. Hikers often praise the diverse landscapes, the tranquility of the Vexin Français Regional Natural Park, and the well-maintained network of trails that cater to various fitness levels.
While specific parking information for every trailhead isn't always listed, many popular hiking areas and villages within the Vexin Français Regional Natural Park, including Cormeilles-En-Vexin, typically offer designated parking spaces. It's advisable to check the starting point of your chosen route for specific parking details.
The Vexin Français Regional Natural Park offers beautiful hiking opportunities throughout the year. Spring brings vibrant wildflowers and lush greenery, while autumn showcases stunning foliage. Summer is ideal for longer days, and even winter can be picturesque, though some trails might be muddy. Always check local weather conditions before heading out.
Yes, for those seeking a challenge, there are difficult routes available. One such option is the La Fontaine – Highest point in the Val d'Oise loop from Bréançon. This 19.7 km path includes significant elevation gain, leading to the highest point in the Val d'Oise, and requires very good fitness.
Cormeilles-En-Vexin itself is a rural village with local amenities. You can often find cafes or small restaurants in the village center or in nearby towns within the Vexin Français Regional Natural Park. Many routes pass through or near these villages, offering opportunities for refreshments after your hike.


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