5.0
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239
runners
25
runs
Jogging around Sy offers a variety of routes primarily centered around the Bairon Reservoir and its surrounding wetlands. The terrain is generally flat to gently rolling, with minimal elevation changes, making it suitable for various fitness levels. The region is characterized by open water, marshy areas, and some forested sections, providing a mix of natural scenery for runners.
Last updated: June 25, 2026
34
runners
9.35km
01:04
40m
40m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
69
runners
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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9
runners
10.8km
01:12
70m
70m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
runners
9.62km
01:04
120m
120m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
runners
10.4km
01:10
120m
120m
Moderate run. Good fitness required. Mostly paved surfaces. 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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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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There are over 20 running routes around Sy, primarily centered around the Bairon Reservoir and its surrounding wetlands. These routes offer a variety of experiences for different fitness levels.
Yes, Sy offers several easy running options. While most routes are moderate, there is at least one designated easy route. The terrain is generally flat to gently rolling, making many of the moderate trails also accessible for a relaxed run.
For those seeking a more challenging run, Sy features a couple of routes with slightly more elevation or longer distances. These trails still maintain the region's characteristic gentle inclines but offer a more strenuous workout.
Absolutely. Many of the running routes in Sy are circular, allowing you to start and finish at the same point. A popular option is the Étang de Bairon — loop — running from Sauville, which is 5.8 miles (9.3 km) long and offers scenic views around the pond.
The generally flat to gently rolling terrain around Sy makes many of the running routes suitable for families. The paths around the Bairon Reservoir, for instance, are often well-maintained and offer pleasant, accessible distances for a family outing.
While specific regulations can vary, many outdoor areas in France, including natural spaces like those around the Bairon Reservoir, generally permit dogs on leash. It's always best to keep your dog under control and clean up after them to ensure a pleasant experience for everyone.
Running in Sy offers diverse scenery, dominated by the expansive Bairon Reservoir and its surrounding wetlands. You'll experience open water views, marshy areas, and some forested sections, providing a mix of natural landscapes throughout your run.
Yes, the region around Sy offers several points of interest. The Bairon Reservoir itself is a significant natural landmark. You might also find the Bairon Lake Nature Reserve interesting, which protects the local flora and fauna.
The running routes in Sy vary in length, with many popular options ranging from 3.8 miles (6.2 km) to over 6.7 miles (10.8 km). For example, the Bairon Reservoir – Wetlands loop from Bairon et ses environs is about 6.7 miles (10.8 km).
Yes, the terrain around Sy is characterized by minimal elevation changes, making it ideal for runners who prefer flat or gently undulating paths. The routes around the Bairon Reservoir, such as the Bairon Reservoir loop from Bairon et ses environs, typically have very little ascent.
Over 200 runners have explored Sy's varied terrain using komoot. While specific ratings aren't available, the high number of visitors suggests a well-regarded running destination. Users often praise the tranquil reservoir paths and the natural beauty of the wetlands.
Given the focus on the Bairon Reservoir area, it is common to find designated parking facilities near popular access points to the trails. These are typically provided for visitors to the reservoir and its recreational areas.
Autumn is a beautiful time to run in Sy, as the surrounding forested sections and wetland vegetation change colors. Routes like the Bairon Reservoir – Bairon Reservoir loop from Bairon et ses environs offer pleasant views that would be enhanced by the seasonal foliage.
While the Bairon Reservoir is a popular spot, the network of trails around Sy offers enough variety to find quieter sections, especially during off-peak hours or by exploring routes slightly further from the main recreational hubs. The Running loop from Autruche might offer a more secluded experience.


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