4.3
(1028)
4,988
hikers
345
hikes
Hiking around Forêt de Trélon offers diverse landscapes within a 3,000-hectare forested area, recognized as a Natura 2000 protected site. The region features a mix of mature oak, beech, and hornbeam forests, alongside varied ecosystems including bocage and fagne. To the north, the forest extends towards the artificial Lac du Val Joly, and several routes incorporate natural water features like the Grande-Helpe river and Étang des Forges. The terrain provides options from gentle paths to more challenging ascents, with elevations…
Last updated: July 9, 2026
4.5
(68)
333
hikers
18.2km
05:01
310m
310m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.6
(43)
147
hikers
13.0km
03:34
210m
210m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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4.6
(8)
20
hikers
5.70km
01:33
80m
80m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
11
hikers
5.45km
01:25
30m
30m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
6
hikers
17.9km
04:47
200m
200m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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This large artificial lake is a superb hiking spot. The tour of the lake is a route of approximately 16 kilometers, allowing you to discover the banks of the lake and the Helpe Majeure river, through beautiful meadows and the Abbé-Val-Joly national forest.
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This large artificial lake is a superb hiking spot. The tour of the lake is a route of approximately 16 kilometers, allowing you to discover the banks of the lake and the Helpe Majeure river, through beautiful meadows and the Abbé-Val-Joly national forest.
2
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A nice little hike to discover what ValJoly offers as an activity (horseback riding, mini golf, simple or electric pedal boat, bike ride, etc.). I did this hike with my dog and in the middle of the rain, overall the paths are in good condition. There is just one part, after the equestrian center, where the path is dirt with a slight downward slope. Be careful of slipping ☺️
0
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From this bridge you have a breathtaking view of the lake and its banks.
3
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Beautiful church on the Plincial square where there is also a charming inn not far away.
0
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Cozy cafe at the church of Eppe-Sauvage.
1
0
Forêt de Trélon offers a diverse range of terrain. You'll find expansive woodlands with mature oak, beech, and hornbeam trees, alongside areas of bocage (hedged farmland) and 'fagne' (wetlands). Many routes incorporate natural water features like the Grande-Helpe river and the tranquil Étang des Forges. The area also features varied elevations, with some trails reaching up to 310 meters.
Yes, there are over 300 hiking trails around Forêt de Trélon. This includes a wide variety of options, with approximately 130 easy routes, 150 moderate routes, and 20 more challenging trails, ensuring something for every fitness level.
The region is rich in natural beauty. A prominent feature is the artificial Lac du Val Joly to the north, which many trails encircle or pass by. You can also discover the Grande-Helpe river and the peaceful Étang des Forges. Beyond natural sights, the historic Château de Trélon, a majestic Louis XIII style edifice, offers a cultural landmark nearby.
Yes, Forêt de Trélon has many easy routes suitable for families. For example, the Moustier-en-Fagne Priory – Priory of Moustier-en-Fagne loop from Moustier-en-Fagne is a 5.5 km trail that takes about 1 hour 25 minutes, offering a pleasant walk through the countryside.
Many of the trails in Forêt de Trélon are circular, allowing you to start and end at the same point. A popular option is the Val Joly Dam – Val-Joly Lake Loop loop from Eppe-Sauvage, a moderate 13 km path offering views of the Val Joly Dam and the surrounding lake.
The trails in Forêt de Trélon are highly regarded by the komoot community, with an average rating of 4.3 stars from over 800 reviews. Hikers often praise the diverse landscapes, the beauty of Lac du Val Joly, and the well-maintained paths that cater to various skill levels.
For those seeking a challenge, Forêt de Trélon offers several difficult routes. The Lake Val-Joly – Val-Joly Lake Loop loop from Eppe-Sauvage is a demanding 18.2 km trail with significant elevation gain, encircling Lac du Val Joly and providing varied terrain.
Yes, many trails, especially those around Lac du Val Joly, offer scenic viewpoints. The varied terrain and elevation changes provide opportunities for panoramic views over the lake and the expansive forest canopy.
Beyond natural beauty, you can explore cultural elements. The 'Circuit des chapelles et des ailles à Ohain' showcases chapels and oratories carved from blue limestone. Another route, the 'Circuit des marroux à Glageon,' combines historical architecture, such as 18th and 19th-century master houses, with the natural beauty of the Avesnois bocage.
While specific parking details for every trailhead are not available here, popular starting points like Eppe-Sauvage, especially around Lac du Val Joly, typically offer designated parking areas for hikers. It's advisable to check local signage upon arrival.
Forêt de Trélon is beautiful year-round, but spring and autumn are particularly popular. Spring brings lush greenery and blooming flora, while autumn offers stunning fall foliage. Summer is also pleasant, especially around the lake, though some trails might be busier.
For those interested in longer excursions, the 'Voie Verte de l'Avesnois' provides over 100 kilometers of safe paths suitable for walking or cycling. While not exclusively within Forêt de Trélon, it connects through forests, meadows, and charming villages in the wider region.


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