4.4
(32)
100
hikers
5
hikes
Hiking around Etang Du Corong offers diverse landscapes centered around a 75-hectare lake in Glomel. The terrain features tranquil lake shores, single-track trails, and the unique, mossy Corong Gorges with granite sand mini-beaches. Hikers can also explore the historical Bois de Kerien, once home to a medieval castle. The area provides a blend of accessible paths and more immersive natural surroundings.
Last updated: July 7, 2026
5.0
(2)
6
hikers
12.0km
03:11
110m
110m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
2
hikers
5.39km
01:24
30m
30m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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3
hikers
8.87km
02:22
100m
100m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.0
(1)
4
hikers
9.08km
02:28
130m
130m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
2
hikers
8.97km
02:27
130m
130m
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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Despite the absence of a bell tower, this chapel remains a remarkable witness to the past. On the porch ceiling, a crucifix.
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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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Excellent and inexpensive pancakes, welcome coffee for a pleasant refreshment
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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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There are 5 dedicated hiking routes around Etang Du Corong that are easily accessible from local bus stations. These trails offer a convenient way to explore the region's natural beauty without needing a car.
Yes, for an easy and family-friendly option, consider the Étang des Sources loop from Maël-Carhaix. This route is approximately 5.4 km long and offers a gentle introduction to the area's landscapes, perfect for a relaxed outing.
The bus-accessible hikes around Etang Du Corong offer a diverse range of landscapes. You'll encounter tranquil lake shores, such as on the Kerdiston lake – The Glomel Cut loop from Glomel, as well as historical woodlands and potentially glimpses of the mysterious Corong Gorges area with its mossy rocks and the Follezou river.
Yes, several routes are circular, allowing you to return to your starting point without retracing your steps. For example, the Kerdiston lake – The Glomel Cut loop from Glomel is a moderate 12.3 km circular hike, and the L'Écluse 150 loop from Rostrenen is another excellent circular option.
The bus-accessible hikes around Etang Du Corong vary in length and difficulty. You'll find routes ranging from approximately 5 km to over 12 km. There is 1 easy route, ideal for a leisurely stroll, and 4 moderate routes that offer a bit more challenge with varied terrain and elevation changes.
While hiking, you might encounter historical sites like the Bois de Kerien, once home to the castle of Kerrien, or the impressive Menhir de Glomel, one of Brittany's largest standing stones. The routes also offer opportunities to observe the rich biodiversity of the lake, including various migratory birds.
The area is highly rated by the komoot community, with an average score of 4.35 stars from 21 ratings. Reviewers often praise the tranquil atmosphere, the diverse landscapes, and the well-maintained paths that make for an enjoyable outdoor experience.
Absolutely. The Etang Du Corong area is known for its versatility. Besides hiking, you can enjoy water activities on the lake, explore cycling routes, or simply relax by the tranquil shores. Some trails might pass near areas suitable for picnicking or birdwatching.
For those seeking a longer, moderate challenge, the Kerdiston lake – The Glomel Cut loop from Glomel is a great option. At around 12.3 km with moderate elevation, it provides a more extensive exploration of the region's natural and historical features.
Etang Du Corong offers pleasant hiking conditions throughout much of the year. Early spring is particularly good for birdwatching as migratory birds visit the lake. Summer provides warmer weather for combining hikes with water activities, while autumn showcases beautiful foliage. Always check local weather conditions before heading out.
Many trails in the Etang Du Corong area are generally dog-friendly, especially those in natural park settings. However, it's always recommended to keep dogs on a leash to protect local wildlife and ensure the comfort of other hikers. Specific rules may apply in certain protected areas, so look for signage.


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