Attractions and Places To See around Lac De Guerledan - Top 6
Best attractions and places to see around Lac De Guerledan, the largest artificial lake in Brittany, France, are diverse. Formed by the Blavet River and a hydroelectric dam, the lake spans 12 kilometers and covers 4 square kilometers. The region, nestled between the departments of Morbihan and Côtes-d'Armor, features natural landscapes, historical landmarks, and cultural sites. It offers a range of experiences for visitors exploring its terrain.
Best attractions and places to see around Lac De Guerledan
- The most popular attractions is Guerlédan Lock - Nantes to Brest Canal, a man-made monument that represents the last locks before reaching the barrage. This site offers a detour to Saint Aignan, where visitors can access the canal.
- Another must-see spot is Shaded trail along Lake Guerlédan, a trail offering single tracks for hiking or running. It provides viewpoints over Lake Guerlédan and an experience of the woods.
- Visitors also love Canal de Nantes à Brest: Pontivy to Mûr-de-Bretagne, a river section where the Blavet flows. This part of the canal has a regulated course with locks and a gravelly surface suitable for various bike types.
- Lac De Guerledan is known for its natural features like the Quénécan Forest and Gorges de Daoulas, historical sites such as Abbaye de Bon Repos, and various water sports. The area offers a variety of attractions to see and explore, from hiking trails to cultural landmarks.
- The attractions around Lac De Guerledan are appreciated by the komoot community, with 49 upvotes and 8 photos shared by visitors.
Last updated: May 21, 2026
Canal de Nantes à Brest: Pontivy to Mûr-de-Bretagne
Highlight (Segment) • River
Slightly to the north of Mûr-de-Bretagne, the Guerlédan dam abruptly interrupts its course, thus giving birth to the largest artificial lake in Brittany, the Lac de Guerlédan. The gravelly surface is pleasant for both touring bikes, gravel and even road bikes.
I am personally charmed by the melody of the tires on the gravel, so this portion is conducive to meditation and relaxation for me. A real moment of vacation!
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Guerlédan Dam
Highlight • Monument
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Guerlédan Lock - Nantes to Brest Canal
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Landroannec Cove
Highlight • Lake
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Shaded trail along Lake Guerlédan
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Tips from the Community
The silence of the woods, the beauty of the landscape and the views over Lake Guerlédan
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A great detour to Saint Aignan, the Les Pêcheries de Guerlédan restaurant is very welcoming, with bike parking, a generous meal and welcome. Crossing the village, you can reach the canal a little further on via the lock.
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Superb view of Lake Guerledan from the treetop adventure course
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Guerledan Dam possibility of going to the foot by road to admire this impressive building. On the right a small path leads up to lake level, the view is superb.
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This curved section of the famous Nantes-Brest canal lets you discover the richness of the banks of the Blavet, which flows into the Lorient estuary in Morbihan. You can see that its bed is mainly artificial, and that its course is regulated by an ingenious system of locks. Slightly to the north of Mûr-de-Bretagne, the Guerlédan dam abruptly interrupts its course, thus giving birth to the largest artificial lake in Brittany, the Lac de Guerlédan. The gravelly surface is pleasant for both touring bikes, gravel and even road bikes. I am personally charmed by the melody of the tires on the gravel, so this portion is conducive to meditation and relaxation for me. A real moment of vacation!
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The cove of Landroannec has a small beach and is crossed by the path that goes around the lake of Guerlédan. It is a beautiful leisure base and a choice birdwatching spot.
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This trail offers great little singles for hiking or running on an ultra-fun route with, in addition, magical viewpoints over Lake Guerlédan.
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Nice view. Perfect to take a breather
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Frequently Asked Questions
What natural features and viewpoints can I explore around Lac de Guerlédan?
The region offers diverse natural beauty. You can explore the vast Quénécan Forest for hiking and mountain biking, or visit the Gorges de Daoulas with its impressive rocky cliffs. The Liscuis Heathlands provide wild landscapes and megalithic burial mounds. For stunning vistas, head to the Shaded trail along Lake Guerlédan, which offers magical viewpoints, or the Trégnanton Viewpoint on the western side of the lake.
Are there historical or cultural sites to visit near Lac de Guerlédan?
Yes, the area is rich in history. The 12th-century Abbaye de Bon Repos is a significant Cistercian site that now hosts contemporary art exhibitions. You can also visit Guerlédan Dam, a monumental structure built in the 1920s, with a viewpoint offering excellent views. The preserved hamlet of Les Forges des Salles provides a glimpse into 19th-century industrial life, while the Maison des Toiles in Saint-Thélo explores Brittany's textile history.
What water activities are available on Lac de Guerlédan?
Lac de Guerlédan is a hub for water sports. You can enjoy kayaking, paddleboarding, swimming, water skiing, sailing, and pedalo. Beaches like Beau Rivage, Landroannec Cove, and Plage du Rond Point offer facilities for these activities. Anglers can also find good spots for fishing pike and pike-perch, particularly at Landroannec.
Are there family-friendly attractions or activities around Lac de Guerlédan?
Absolutely. Many attractions are suitable for families, including the Guerlédan Lock - Nantes to Brest Canal, which is a popular spot. Landroannec Cove features a small beach perfect for leisure. The Canal de Nantes à Brest offers pleasant cycling paths for all ages. Additionally, treetop adventure activities (Accrobranche) are available for a dynamic family experience.
What cycling opportunities are there near Lac de Guerlédan?
The area is excellent for cycling. You'll find over 300 km of marked mountain biking (VTT) trails, sections of the Vélodyssée (EV1), and the challenging 155 km Jean Robic circuit. The gravelly surface along the Nantes-Brest Canal is particularly pleasant for various bike types. For specific routes, you can explore the Road Cycling Routes around Lac De Guerledan or Cycling around Lac De Guerledan guides.
Can I go hiking around Lac de Guerlédan?
Yes, hiking is a popular activity with numerous marked trails. A complete tour around the lake takes about two days to walk, and the GR341 circuit also passes through. The Shaded trail along Lake Guerlédan offers great single tracks for hiking or running with beautiful views. You can find more options in the MTB Trails around Lac De Guerledan guide, which also includes hiking routes.
What is the Guerlédan Dam and can I visit it?
The Guerlédan Dam is a monumental hydroelectric structure, 45 meters high and 206 meters long, built between 1923 and 1930. It's a crucial part of the region's infrastructure and offers impressive views. There's a viewpoint roundabout that provides excellent panoramas of the dam and the lake. You can also go to its foot by road to admire the impressive building.
What is the best time of year to visit Lac de Guerlédan?
The region around Lac de Guerlédan is enjoyable throughout the year, but the warmer months from spring to early autumn (May to September) are ideal for water sports, hiking, and cycling. During this period, the weather is generally pleasant for outdoor activities. The lake's draining, which occurs approximately every 30 years, offers a unique historical glimpse of submerged villages and canal locks, but this is a rare event.
Are there any unique gardens or green spaces to visit?
Yes, in Gouarec, along the Nantes-Brest Canal, you can discover Un Jardin en Ville. This 'Remarkable Garden' features meticulously shaped yews and hornbeams, walls, terraces, and a pond, offering a tranquil and beautiful green space to explore.
What do visitors enjoy most about the attractions around Lac de Guerlédan?
Visitors particularly appreciate the diverse outdoor activities, from the single tracks for hiking and running on the Shaded trail along Lake Guerlédan to the pleasant gravel paths for cycling along the Canal de Nantes à Brest. The stunning views over the lake, the tranquility of the woods, and the historical significance of sites like the Guerlédan Dam and Guerlédan Lock are frequently highlighted. The area's natural beauty and the opportunity for relaxation are also highly valued.
Can I find prehistoric sites in the area?
Yes, you can visit the Site néolithique de Quelfénec in Plussulien. Perched at nearly 310 meters, this Neolithic site offers a unique panorama of Central Brittany and reveals the region's prehistoric history through a one-kilometer loop trail, providing an interesting historical perspective.
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