4.4
(32)
100
hikers
21
hikes
Hiking around Etang Du Corong offers diverse landscapes centered around a 75-hectare lake in Brittany, France. The region features peaceful lake shores, extensive woodlands like the Bois de Kerien, and single-track trails. Elevation changes are generally minimal around the main lake, with some longer routes incorporating more varied terrain.
Last updated: July 5, 2026
5.0
(2)
8
hikers
12.3km
03:14
100m
100m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
3.0
(2)
7
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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4.7
(3)
13
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
3.0
(1)
1
hikers
6.26km
01:41
80m
80m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.5
(2)
4
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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A pretty iron bridge, built for farmers at the time. Here the path along the water was in a bad state in April 2026 (a warning was installed on one side of the section, but a detour through the forest is possible).
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This former Gothic-style church, built in the 14th century, began in 1490 under the leadership of Abbot Vincent de Kergoët and was partially completed under the abbotship of Yves de Boutteville. Built entirely of granite, this building has a Latin cross plan. A remarkable fountain dating from the 17th century is located 300 m from the church.
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This is one of the very few straight sections of the canal.
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Here the canal meanders through the landscape.
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A welcome breath of fresh air
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At an altitude of 184 m, the Glomel trench is the highest point of the Nantes-Brest canal and the watershed between the Blavet and Aulne basins. The canal project and its passage through the center of Brittany dates back to Vauban, the decision and the route to Napoleon. The impressive trench allows the Aulne and Blavet watersheds to communicate via the canal. The Grande Trenche of the Canal from Nantes to Brest was dug in the 19th century by deserters from the army of Louis XVIII. The 4000 convicts of Glomel had to move as much earth and rock as was necessary for the construction of a great pyramid in Egypt. It took 9 years to create this trench, more than 3 kilometers long, 100 meters wide and 23 meters deep.
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The dams for the Canal de Nantes à Brest create a lake from the waters of a little stream, the bike trail passes on the back of the levy
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There are over 15 hiking trails around Etang Du Corong, offering a variety of experiences. These include routes suitable for all skill levels, from easy strolls to more moderate excursions.
The hiking trails around Etang Du Corong are predominantly easy to moderate. You'll find 6 easy routes perfect for a relaxed walk, and 10 moderate trails for those seeking a bit more challenge. There are no difficult trails listed in the immediate vicinity.
Yes, the area is very family-friendly. The primary trail circling the lake is approximately 6 km with minimal elevation gain, making it accessible for all ages. An example of an easy route is the Calotte Saint-Joseph loop from Botquelvez, which is about 6.3 km long and winds through peaceful woodlands with lake views.
While specific regulations for dogs are not detailed, the natural setting of Etang Du Corong, with its extensive woodlands and lake shores, generally welcomes well-behaved dogs on leash. It's always recommended to keep your dog under control to protect local wildlife and ensure a pleasant experience for all hikers.
Yes, many of the trails around Etang Du Corong are circular, allowing you to start and end at the same point. The main trail around the lake is a popular circular option. For a longer loop, consider the Kerdiston lake – The Glomel Cut loop from Glomel, which is a 12.3 km circular route.
Hikers can expect diverse landscapes, including the expansive 75-hectare lake with its peaceful shores, extensive woodlands like the historic Bois de Kerien, and 'monotrace' (single-track) trails. The area is also a haven for biodiversity, attracting numerous migratory birds, especially in early spring.
Yes, the area is rich in history. You can encounter the impressive 8.60-meter-tall Menhir de Glomel, one of Brittany's largest megaliths. The Chapelle Saint-Conogan, dating back to the early 16th century, is also nearby, offering a glimpse into local heritage. Some longer routes may also pass by the historic Moulin de Corong and sections of the Canal de Nantes à Brest.
Absolutely. Etang Du Corong is recognized as a significant natural feature and a haven for biodiversity. It attracts numerous migratory birds such as pintails and great crested grebes, making it an ideal spot for birdwatching, particularly in early spring.
The primary trail circling the lake, which is about 6 km, can typically be completed in around 1.5 to 2 hours at a leisurely pace. Longer routes, such as the Calotte Saint-Joseph loop from La Trinité-Langonnet (10.5 km), usually take about 2 hours 47 minutes.
While most trails are easy to moderate, there are options for longer excursions. The 15.05 km 'Tour des étangs de Glomel' route, for instance, incorporates nearby features like the Canal de Nantes à Brest and has more significant elevation changes, offering a medium difficulty challenge.
Yes, parking facilities are generally available near popular access points around Etang Du Corong, making it convenient for hikers to start their routes. Specific parking areas are usually indicated on local maps or trailheads.
The area is enjoyable year-round, but spring and autumn offer particularly pleasant conditions with mild temperatures and beautiful scenery. Early spring is ideal for birdwatching, while the fall foliage adds a special charm. Summer is also popular, though it can be busier.
The trails around Etang Du Corong are highly rated by the komoot community, with an average score of 4.6 stars from over 20 reviews. Hikers often praise the tranquil woodlands, expansive lake views, and the well-maintained paths that cater to various fitness levels.


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