Highlight • Monument
Guerlédan Dam
Cycling
4.8
(20)
The Barrage de Guerlédan is a prominent hydroelectric dam nestled in the heart of Brittany, France, standing at an elevation of 137 metres. This impressive concrete gravity dam spans the Blavet River, creating the vast Lac de Guerlédan, Brittany's largest artificial lake. Located between the departments of Morbihan and Côtes-d'Armor, it is a key landmark in the region, known for its engineering marvel and the expansive natural beauty it has shaped.
Visitors are consistently captivated by the sheer scale of…
Tips
May 10, 2023
Cycling
•May 18, 2019
Cycling
•May 10, 2023
Cycling
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Nearby routes
Best routes near Guerlédan Dam
44
riders
27.3km
02:28
580m
580m
Hard bike ride. Very good fitness required. You may need to push your bike for some segments of this route.
4.2
(6)
58
riders
22.2km
01:31
290m
290m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
25
riders
34.6km
02:13
250m
250m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Details
Informations
Elevation 140 m
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Friday 20 March
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4°C
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Additional weather tips
Max wind speed: 16.0 km/h
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Frequently Asked Questions
What are the most popular hiking trails around Barrage de Guerlédan?
The most popular hiking option is the trail that encircles the entire Lac de Guerlédan, offering diverse views of the lake and dam. There are also routes leading to the shale ridges and covered alleys of Landes de Liscuis for those seeking more varied terrain. Many hikers enjoy descending to the foot of the dam for an impressive perspective, with a path leading back up to lake level.
What is the typical hiking difficulty around Barrage de Guerlédan?
The trails around Barrage de Guerlédan range from leisurely strolls to more challenging routes. The path encircling the lake can be quite long, but many sections are suitable for all fitness levels. Some routes, particularly those venturing into the Guerlédan forest or towards the shale ridges, may involve moderate elevation changes and uneven terrain, making comfortable footwear advisable.
Are there specific viewpoints recommended for the best views of Lac de Guerlédan?
Absolutely! The dam itself offers impressive panoramic views of Lac de Guerlédan. For a unique perspective, many visitors recommend descending to the foot of the dam, then taking the small path that leads up to lake level. Additionally, the area around the treetop adventure course provides superb views over the lake.
What are the parking options available at Barrage de Guerlédan?
Access to Barrage de Guerlédan is straightforward by road, with parking available directly at its base. While the intro mentions straightforward access, it's worth noting that parking areas can fill up quickly, especially during peak season or on weekends. Arriving earlier in the day is often recommended to secure a spot.
Is Barrage de Guerlédan accessible by public transport?
While the area is primarily accessed by car, public transport options to Barrage de Guerlédan are limited. Visitors typically rely on personal vehicles or organized tours to reach the dam and surrounding lake area. It's advisable to check local transport schedules if planning to use public services, as connections might require multiple transfers.
What is the best time of year to visit Barrage de Guerlédan for activities other than water sports?
While warmer months are ideal for water sports, the shoulder seasons (spring and autumn) offer pleasant temperatures for hiking and cycling, with fewer crowds. The changing foliage in autumn can be particularly beautiful. Even winter can be suitable for a quiet hike, though some facilities might have reduced hours.
Are there family-friendly activities available at Barrage de Guerlédan?
Yes, Lac de Guerlédan offers several family-friendly activities. Besides easy walking trails suitable for children, there are beaches like Beau Rivage for leisure and swimming. The area also features a treetop adventure course, and the Electrothèque du Lac de Guerlédan – Musée de l'Électricité provides an educational experience about the dam's history and electricity generation.
Are dogs allowed on the trails around Lac de Guerlédan?
Many trails around Lac de Guerlédan are dog-friendly, allowing you to enjoy a walk with your canine companion. However, it's always recommended to keep dogs on a leash, especially in busier areas or near wildlife, and to be mindful of local regulations regarding pet access, particularly on beaches or in specific nature reserves.
What dining options are available near Barrage de Guerlédan?
The area around Lac de Guerlédan, including nearby towns like Mûr-de-Bretagne and Saint-Aignan, offers various dining options. You can find local restaurants and cafes serving traditional Breton cuisine, as well as more casual eateries. It's a good idea to check opening hours, especially outside of peak tourist season.
What is the significance of the lake being drained, and how often does it happen?
The complete draining of Lac de Guerlédan, known as an "assec," is a rare event undertaken for dam maintenance and inspection. During these periods, the submerged remnants of the Blavet valley and the 17 locks of the Nantes-Brest Canal are revealed, offering a unique historical spectacle. This event has occurred periodically, with the last notable draining in 2015, attracting significant visitor interest. It is not a regular occurrence for tourists to plan around.