4.4
(121)
651
hikers
38
hikes
Hiking trails around Les Petites-Armoises are primarily shaped by the Bairon Reservoir and its location within the Ardennes Regional Natural Park. The Bairon Reservoir, a 120-hectare artificial lake, features both water sports areas and a Natura 2000 nature reserve, offering opportunities for observing local flora and fauna. The wider Ardennes Regional Natural Park contributes diverse landscapes, including hilly, forested areas, valleys, fields, and high plateaus.
Last updated: July 5, 2026
4.7
(15)
77
hikers
9.35km
02:24
40m
40m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.3
(15)
113
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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3.0
(1)
5
hikers
5.18km
01:24
70m
70m
Easy hike. Great for any fitness level. 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.
4.4
(19)
121
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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type of reservoir with different levels
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Located in the heart of the Ardennes, between the municipalities of Bairon and Sauville, Lake Bairon is made up of two ponds separated by a dike, for a total area of 120 hectares. The Old Pond and its reed bed have been transformed into a nature reserve (classified as a natura 2000 zone), and on the other side a water reservoir is intended for nautical activities.
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The Bairon reservoir is an artificial lake of 120 hectares divided into two parts: one for water sports and leisure activities, the other for the observation and conservation of fauna and flora. You can follow the trails around the lake and enjoy the green landscape, the singing of birds and the peaceful atmosphere. You can even observe rare species of plants and animals in the old pond, now a nature reserve. It’s an ideal destination for a run.
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The Bairon reservoir is an artificial lake of 120 hectares divided into two parts: one for water sports and leisure, the other for the observation and conservation of fauna and flora. You can follow the trails around the lake and enjoy the green landscape, the singing of birds and the peaceful atmosphere. You will even be able to see rare species of plants and animals in the old pond, now a nature reserve. It is an ideal destination for a hike.
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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.
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A NATURAL RESERVE Nestled in the heart of the Ardennes, Lake Bairon, with an area of 120 hectares, consists of two ponds separated by a dike: the old pond and its reed bed, formed into a nature reserve, and a water reservoir intended for water activities. Today, the Ardennes Departmental Council coordinates the development and promotion of the site. A PLACE OF RELAXATION Hiking trails, playgrounds and a sandy beach invite you to relax and feel well-being. The site welcomes 200,000 people a year, including more than 40,000 swimmers who enjoy the lake. Learn about the most extensive water sports: canoeing, windsurfing... Also enjoy the 5000m2 beach and the pleasures of swimming. This summer there will be supervision every afternoon from 1 p.m. to 7 p.m., from June 15 to August 28. Please note that in view of the deterioration of the water quality of Lake Bairon and in consultation with the Regional Health Service, swimming and water activities at Lake Bairon are prohibited until further notice. Likewise, it is recommended that fishermen do not consume the fish they catch. Source: https://www.vnf.fr/vnf/points-d-interetss/reservoir-du-bairon/
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Water features bring tranquility to the landscape. A nature reserve that you must have seen.
2
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The hiking trails around Les Petites-Armoises are primarily shaped by the tranquil Bairon Reservoir and the diverse landscapes of the wider Ardennes Regional Natural Park. You'll find a mix of easy lakeside strolls, moderate forest paths, and routes through hilly, forested areas, valleys, and fields. Many trails offer opportunities for wildlife observation within the Natura 2000 nature reserve at Bairon Reservoir.
Yes, there are plenty of options. The area offers over 30 hiking routes, catering to various preferences. You'll find a good selection of easy and moderate trails, with a few more challenging options for experienced hikers.
Absolutely. Around Les Petites-Armoises, 10 of the available routes are rated as easy. A great option for a relaxed walk is the Bairon Reservoir – Bairon Reservoir loop from Bairon et ses environs, which is 5.4 km long and offers pleasant views of the reservoir. Another easy choice is the Bairon Reservoir loop from Le Chesne, covering 5.8 km through lakeside and forested areas.
The area is highly rated by the komoot community, with an average score of 4.3 stars from over 120 reviews. Hikers often praise the peaceful atmosphere, the green landscapes, and the opportunities to observe local flora and fauna, especially around the Bairon Reservoir. The well-maintained paths and varied terrain are also frequently mentioned.
Yes, many of the trails around Les Petites-Armoises are designed as loops, allowing you to start and end at the same point. For example, the popular Étang de Bairon — loop from Sauville is a 9.3 km circular route that encircles the Bairon Reservoir. Another option is the Étang de la Barbière loop from Le Mont-Dieu, a shorter 3.7 km loop.
The primary natural attraction is the Bairon Reservoir itself, which is a significant feature of many trails. You can also explore the Bairon Lake Nature Reserve, a Natura 2000 zone known for its ecological importance and opportunities for birdwatching. Further afield, the Ardennes Regional Natural Park offers diverse landscapes including dense forests and high plateaus.
Yes, beyond the natural beauty, you can visit the Chartreuse du Mont-Dieu, a historical site that adds a cultural dimension to your visit. You might also encounter sections of the Canal des Ardennes with its succession of locks, showcasing the region's heritage.
The region is generally pleasant for hiking from spring through autumn. Spring brings blooming flora and active wildlife, while summer offers warm weather for lakeside activities. Autumn provides beautiful foliage in the Ardennes forests. Winter hiking is possible, but conditions can vary, so checking local weather forecasts is advisable.
Many trails in the Ardennes Regional Natural Park and around the Bairon Reservoir are suitable for dogs, provided they are kept on a leash, especially in nature reserve areas to protect local wildlife. It's always a good idea to check specific trail regulations or local signage before heading out with your dog.
While Les Petites-Armoises is a small municipality, access to hiking trails, particularly those around the Bairon Reservoir, often requires personal transport. Public transport options directly to trailheads might be limited, so planning your journey by car is generally recommended for convenience.
For trails around the Bairon Reservoir, you can typically find parking facilities near popular starting points in nearby villages such as Sauville, Bairon et ses environs, or Le Chesne. These villages serve as common access points for the various loops around the lake.
The terrain varies from relatively flat, well-maintained paths around the Bairon Reservoir to more undulating and forested trails within the Ardennes Regional Natural Park. You can expect a mix of dirt paths, gravel tracks, and some paved sections, generally suitable for standard hiking footwear.


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