4.4
(111)
621
hikers
38
hikes
Hiking around Sy offers a diverse landscape characterized by rolling hills, dense woodlands, and historical sites. The region features a network of trails that traverse varied terrain, including areas around former battlefields and religious foundations. Elevation changes are generally moderate, providing accessible routes for different fitness levels. The landscape around Sy is typical of the Ardennes, with a mix of forest paths and open country.
Last updated: June 21, 2026
4.2
(18)
59
hikers
9.56km
02:41
190m
190m
Hike the 5.9-mile Chartreuse and Battle of Stonne Trail, a moderate route blending historical sites with scenic Ardennes forests.
3.5
(2)
13
hikers
2.49km
00:44
80m
80m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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3.0
(2)
6
hikers
6.50km
01:48
120m
120m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
6
hikers
21.2km
05:46
300m
290m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
4
hikers
3.74km
01:02
70m
70m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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After a visit to the Grande-Chartreuse in the Dauphiné, Odo, abbot of the Abbaye Saint-Remi in Reims, founded the first Carthusian monastery in France in 1132. It covered more than 12 hectares and was surrounded by a triple wall. The monastery, so close to Protestant Sedan, suffered during the religious wars, served as a prison during the French Revolution and was then partially demolished. In the open space at the foot of the Crêtes de l'Argonne there are eight sober 17th century buildings made of pink brick, with natural stone frames on doors and windows. It is all that remains of the former monastery.
1
0
It is a small pond surrounded by lush vegetation and wildlife, located near the historic Chartreuse du Mont-Dieu, a former monastery dating back to the 12th century. You can enjoy the tranquility of nature, admire the architecture of the ruins and maybe even spot fish or frogs in the water.
5
0
If you are looking for a peaceful and isolated hiking spot, you will enjoy visiting the Chartreuse du Mont-Dieu, a former monastery of the Carthusian order founded in 1132. This historic site is located in the heart of the Ardennes forest, surrounded by century-old trees and springs. You can explore the ruins of the monastery, which was rebuilt in the 17th century in a brick and stone style similar to that of Place Ducale in Charleville. You can also enjoy the natural beauty of the forest, where you may encounter wildlife such as deer, foxes or birds. The Chartreuse du Mont-Dieu is an ideal destination for a quiet and relaxing hike.
4
0
There are over 30 hiking trails around Sy, catering to various skill levels. You'll find a good mix of easy, moderate, and a few more challenging routes to explore the region's diverse landscape.
Yes, Sy offers several easy and family-friendly trails. For a short, accessible walk, consider the Chartreuse du Mont-Dieu – Le Gros Chêne loop from Le Mont-Dieu, which is only 2.5 km long. Another easy option is the Étang de la Barbière – Chartreuse du Mont-Dieu loop from Le Mont-Dieu, a 6.5 km path through woodlands and past water features.
The terrain around Sy is characteristic of the Ardennes, featuring rolling hills, dense woodlands, and open country. Trails often traverse varied surfaces, including forest paths and historical areas, with generally moderate elevation changes.
For those seeking a longer and more challenging experience, the Le Gros Chêne – Chartreuse du Mont-Dieu loop from Les Grandes-Armoises is a difficult 21.8 km route. This trail offers a more extensive exploration of the region's landscapes.
Yes, many of the trails around Sy are circular. Examples include the easy Chartreuse du Mont-Dieu – Le Gros Chêne loop from Le Mont-Dieu and the Étang de la Barbière loop from Le Mont-Dieu, which is 3.7 km long.
The region around Sy is rich in history and natural beauty. You can explore the historical Chartreuse du Mont-Dieu, or visit natural monuments like the Bairon Reservoir and the Bairon Lake Nature Reserve. Some trails, like the Chartreuse and Battle of Stonne Trail, specifically explore historical areas.
The hiking routes in Sy are highly regarded by the komoot community, with an average rating of 4.3 stars from over 100 reviews. Hikers often praise the diverse terrain, the blend of woodlands and open areas, and the historical context of some routes.
While the dense woodlands of Sy offer beautiful scenery in winter, conditions can vary. It's advisable to check local weather forecasts and trail conditions before heading out, as some paths may become muddy or icy. Always wear appropriate winter hiking gear.
Spring and autumn are generally considered the best times for hiking in Sy. In spring, the forests come alive with fresh greenery, while autumn offers stunning foliage colors. Summer can also be pleasant, but trails might be busier, and winter offers a quieter, more serene experience if you're prepared for colder conditions.
Generally, dogs are welcome on hiking trails in the Ardennes region, including around Sy. However, it's always recommended to keep them on a leash, especially in nature reserves or areas with livestock, and to clean up after them. Check for specific signage on individual trails.
Yes, some trails incorporate water features. The Étang de la Barbière – Chartreuse du Mont-Dieu loop from Le Mont-Dieu, for instance, leads through woodlands and past water features. You can also find the Bairon Reservoir and Bairon Lake Nature Reserve nearby.


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