Nestling deep in the hills, Lac de Guerlédan stretches its length through the Blavet Valley. Each meander reveals a different facet of its personality. It's the perfect place for family walks and swims, but also the perfect playground for hikers, trail runners and water sports enthusiasts. 

In the heart of central Brittany, Lac de Guerlédan is the result of the construction of a hydroelectric dam on the river Blavet. The lake was created in 1930, making it the largest artificial lake in Brittany, with a surface area of 304 hectares, a length of 12 kilometres and a depth of 45 metres at the foot of the dam.

What to do around the lake

The area around Lac de Guerlédan continues to grow. With friends or family, there are more and more activities on offer. Here's an overview of what you can do

Looking for accommodation for your next trip?

For more precision, filter by commune and the town of Saint-Aignan.

News from the lake

Bookable online

02 August 12 August 2023

Bon-Repos Sound and Light Show

  • Bon-Repos-sur-Blavet
Every summer, the site of Bon-Repos Abbey becomes the setting for a Son et Lumière show performed by over 350 extras, recognised as one of the best in France. This year, a new stage will be added to the show! This impressive historical staging will take you on a breathtaking journey, full of...

The 15 August 2023

Lake Festival

  • Guerlédan
The open-air Fête du Lac is a great day of entertainment for all, featuring sport, culture, fun and music. On the programme: From 7.30amBrocery, Nordic walking and hikingFrom 11amTowed dinghy, climbing wall, canoeing, kayaking and paddlingAt 2pmMaking toys from natural materials, beach volleyball tournament, petanque competition,...

Near Lac de Guerlédan

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