4.6
(17)
87
hikers
7
hikes
Hiking around Grumesnil offers access to the verdant landscapes of the Pays de Bray, a region characterized by its undulating terrain and distinctive geological features. The area provides views over the Boutonnière du Pays de Bray, a notable natural formation. Hikers can explore paths that cross the Thérain River, which originates within Grumesnil, and encounter traditional calvaires. The surrounding countryside is known for its lush, green environment, making it suitable for varied walking routes.
Last updated: July 1, 2026
4.3
(3)
20
hikers
13.1km
03:27
110m
110m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(2)
8
hikers
7.51km
01:58
60m
60m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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2
hikers
8.76km
02:25
150m
150m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
6
hikers
4.65km
01:13
40m
40m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
3.0
(2)
3
hikers
5.73km
01:32
70m
70m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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This natural area located in Forges-les-Eaux is organized around the ponds of the Andelle, formed by two rivers: the Andelle to the east and the Chevrette to the west. All around extends the Bois de l’Épinay, remarkable for the great diversity of tree species it shelters. You can walk there, observe the birds, picnic and take a quiet break enjoying the rustling of the many leaves.
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This majestic facade located near the Casino comes from the town of Gisors. Originally, it was the facade of the chapel of the Carmelite convent built in the 17th century at the initiative of François Sublet. After the French Revolution, this building was transformed into a municipal theater before being bombed during the Second World War. Jacques Hébertot, owner of the Forges Casino in the 1950s, bought the last remaining intact vestige from the town of Gisors and erected it in the town of Forges-les-Eaux with the aim of recreating a certain historical setting.
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This area is located just at the entrance to the Andelle ponds, opposite the casino. A few tables are available, at the foot of the lake, for a nice picnic. Be careful, places will be expensive on a nice day!
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This is a very pleasant picnic area. Located at the end of the Andelle ponds, you will find peace and quiet there as well as some games for children.
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A path has been laid out to reach the sources of the Chevrette: footbridges and pontoons, winding paths, the undulating presence of the Chevrette which plays with the path by shimmering its strange ocher color... We let ourselves be invaded by this beautiful atmosphere in the undergrowth to the source itself.
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This part of the city was developed from the 16th century with the discovery of ferruginous springs in the current Casino park. It was in 1573 that Nicolas de Moy, Grand Master of Water and Forestry, discovered the presence of ferruginous springs. They were made famous from 1633 with the arrival of King Louis XIII, Queen Anne of Austria and Cardinal Richelieu. The spa was thus born! The springs named Reinette, Royale and Cardinal were thus exploited for their property and their medicinal virtues until the 1980s. @OT Forges les Eaux
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These artificial lakes were built in the late 1980s on a peat marsh. They are spread over two levels and separated by an earth dike, valves allow the water level to be controlled. They are fed by the Andelle river which has its source upstream. The wild ponds (to the North) were deliberately left in their natural state to allow birds to nest, while The Bird Mirror (to the South) was the subject of landscaping and ornamental development with consolidation of the banks. . @OT Forges les Eaux
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130 million years ago, sand and iron from the dismantling of continental granite massifs were deposited in a shallow sea. These formations, revealed today by erosion, are crossed by rainwater and underground flows. At the bottom of the Brayonne buttonhole, lined with impermeable clay, water infiltrates into the sandy layers which cover them and soon reappears in multiple sources and small streams. During its journey, this water dissolves and carries away the ferric oxides contained in the sands. So on the surface, these waters are slightly acidic and the iron remains in suspension giving this curious rusty color. This is the case of the Chevrette which you trace back to its source. 850 meters long, this water was too high in iron and was never used for cures. @OT Forges les Eaux
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There are 9 hiking trails around Grumesnil, offering a variety of experiences. These routes are well-regarded by the komoot community, with an average rating of 4.6 stars.
The trails around Grumesnil primarily offer easy and moderate difficulty levels. There are 6 easy routes and 3 moderate routes, making the area accessible for various fitness levels.
Hikers in Grumesnil can enjoy the verdant landscapes of the Pays de Bray, including views over the distinctive Boutonnière du Pays de Bray. You'll also cross the Thérain River, which originates in the village, and encounter traditional French calvaires (stone crosses) along the paths.
Yes, Grumesnil itself is a 'Village Fleuri' with historical charm. You can visit the 13th-century Saint-Pierre Church and the Saint-Pierre-mi-les-Champs chapel, one of the oldest in the Pays de Bray, dating from the 11th and 13th centuries. These can be integrated into your hiking itineraries.
The trails in Grumesnil are highly rated by the komoot community, with an average score of 4.6 stars from over 10 reviews. Hikers often praise the lush, green environment and the picturesque views over the Boutonnière du Pays de Bray.
Yes, with 6 easy routes available, Grumesnil offers several options suitable for families. An example is the Andelle Ponds – Etang de la Chevrette loop from Forges-les-Eaux, an easy 4.7-mile (7.6 km) path that provides a pleasant walk around the ponds.
While specific regulations for dogs on trails are not detailed, the natural and open character of the Pays de Bray generally welcomes well-behaved dogs on leash. Always ensure your dog is under control and respect local signage.
Hikes around Grumesnil vary in length. You can find shorter, easy walks like the Forges-les-Eaux loop from Forges-les-Eaux, which is 1.4 miles (2.2 km), up to moderate routes such as the Source de la Chevrette – Andelle Ponds loop from Forges-les-Eaux, which is 8.2 miles (13.1 km).
Yes, many of the trails around Grumesnil are circular, allowing you to start and end at the same point. Examples include the Bois de l'Echertuette loop from Gaillefontaine and the Forges-les-Eaux – Andelle Ponds loop from Le Fossé.
The verdant countryside of Grumesnil is particularly appealing during spring, summer, and early autumn when the weather is mild and the landscapes are lush. These seasons offer the best conditions for enjoying the outdoor trails and the 'Village Fleuri' charm.
While specific parking areas for each trail are not detailed, Grumesnil is a rural village, and parking is generally available within or near the village center, or at the start points of popular trails. It's advisable to check local signage upon arrival.
After your hike, you could explore the nearby town of Forges-les-Eaux, known for its historic thermal quarter and the Domaine de Forges. You might also encounter sections of the Avenue Verte, a popular cycling route.


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