4.4
(72)
817
riders
61
rides
Mountain bike trails around Etang Au Duc are set within Brittany's largest freshwater lake, spanning 250 hectares across the municipalities of Loyat, Taupont, and Ploërmel. The region features an expansive lake fed by the Yvel River, surrounded by diverse natural habitats and wetlands. Terrain varies from dedicated cycling paths, including a 15 km path around the lake and the V3 greenway built on an old railway line, to areas with unique botanical features like the 3 km Hydrangea Walk. The…
Last updated: October 7, 2026
3.0
(1)
38
riders
38.2km
02:43
330m
330m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(1)
5
riders
39.2km
02:35
230m
230m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

5.0
(1)
5
riders
26.1km
01:54
250m
250m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
4.4
(5)
20
riders
23.3km
01:18
140m
150m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
5.0
(3)
23
riders
18.7km
01:07
150m
150m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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Nice little spot to sit and have a snack peacefully by the water. It's right on the voie verte
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1
Nautical base equipped with activities
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It is one of the largest lakes in Brittany with a length of 5.5 kilometers and a width of between 500 and 900 meters depending on the location. Lake Ploërmel constitutes a habitat of choice for many aquatic and terrestrial species. Otters, frogs, deer, white fish and insects benefit from this space fed by the Yvel. Botany lovers will appreciate the Hydrangea circuit which runs for three kilometers, while running enthusiasts and cyclists take the path which goes around the lake. On the west bank, the water sports center offers a range of sailing or rowing sports, just a stone's throw from the beach.
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Created by monks in the 12th century, Lac au Duc is the largest of Brittany's inland lakes. Its 250 hectares extend between Ploërmel, Taupont and Loyat. Measuring approximately 5.5 km by 500-900 m, Lac au Duc is surrounded by a variety of different natural habitats and wetlands. If you look carefully, you might be lucky enough to see otters, frogs or deer.
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This lake, one of the main bodies of fresh water in Brittany, was developed by monks in the 12th century. The flora and fauna are rich.
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perfect stopover for hikers at the campsite with swimming in the lake.
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There are over 60 mountain bike trails around Etang Au Duc, offering a wide range of options for different skill levels and preferences. The komoot community has explored these routes over 700 times.
The terrain around Etang Au Duc is quite varied. You'll find dedicated cycling paths, including a 15 km path around the lake and the V3 greenway built on an old railway line, which offers smooth surfaces and elevated views. Other areas feature natural surfaces, wetlands, and the unique 3 km Hydrangea Walk, providing a mix of easy and moderate challenges.
Yes, Etang Au Duc offers several easy mountain bike trails perfect for beginners or families. For instance, the Golf de Ploërmel – The Old Bridge of Loyat loop from Les Hautes Rives is an easy 18.3 km trail with scenic lake views. Another great option is the Lac au Duc Water Sports Center – Calvaire du Bourg loop from Taupont, which is 26.1 km and also rated easy.
While mountain biking around Etang Au Duc, you can enjoy the expansive freshwater lake itself, which is Brittany's largest. A distinctive feature is the 3 km Hydrangea Walk, showcasing over 5,000 hydrangea plants. The V3 greenway also offers elevated views of the lake and connects towards the Forest of Brocéliande. Keep an eye out for diverse wildlife such as otters, frogs, and roe deer in the ecologically rich wetlands.
Many of the mountain bike trails around Etang Au Duc are circular, allowing you to start and end at the same point. Examples include the The Old Bridge of Loyat – Birdwatching Platform loop from Loyat (36.2 km) and the The Old Bridge of Loyat – View of Lac au Duc loop from Taupont (39.2 km), both offering diverse landscapes and lake views.
The best time to visit Etang Au Duc for mountain biking is generally from spring to autumn. During these seasons, the weather is pleasant, and the unique Hydrangea Walk around the lake is in full bloom, providing a vibrant and colorful backdrop to your ride.
Yes, the area around Etang Au Duc provides amenities for outdoor enthusiasts. You'll find picnic areas with scenic lake views, perfect for a break during your ride. There are also campsites nearby, and bike rental options are available, making it convenient for visitors.
The mountain bike trails in Etang Au Duc are highly rated by the komoot community, with an average score of 4.5 stars from over 70 reviews. Reviewers often praise the varied terrain, the beautiful lake views, and the opportunities for wildlife observation, making it a rewarding experience for many.
While specific parking locations are not detailed, the region is well-equipped for outdoor activities, and amenities are available. Given the popularity of cycling and the presence of dedicated paths, you can expect to find suitable parking options near trailheads and key access points around the lake, such as near the Lac au Duc Water Sports Center or in the municipalities of Loyat, Taupont, and Ploërmel.
Yes, the V3 greenway, which runs along the lake, offers a smooth and scenic route for cyclists and connects towards the mythical Forest of Brocéliande. This provides opportunities for longer and more adventurous biking excursions beyond the immediate vicinity of Etang Au Duc.
Absolutely. For those seeking a bit more challenge, Etang Au Duc offers several moderate trails. The The Old Bridge of Loyat – Lac au Duc Water Sports Center loop from Ploërmel is a 29.2 km moderate route. These trails provide varied terrain and longer distances for a more engaging ride.


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