The biggest artificial lake in Brittany, Lake Guerlédan was built between 1923 and 1930, to supply power to the dam of the same name. It is open for leisure activities and bathing, with specially designed facilities at several beaches: the biggest of the beaches, Beau Rivage, where you can practise water skiing, canoeing, pedalo or paddle boarding, and where you can set off for a cruise on the lake; Sordan Cove; Guerlédan Cove, near the Cornec wood, where 12 marked circuits await mountain bikers; and Landroanec in Mûr-de-Bretagne, a popular place for fishing.
To the west of the lake, the environment becomes wilder with its moors and gorse, and there are some superb viewpoints like the site of Trégnanton.
Several marked hiking trails await ramblers, including a complete tour around the lake, as well as many exceptional places in the surrounding area: the Cistercian Abbey of Bon-Repos, from the 12th century, the old steel village of Les Forges des salles, the Nantes-Brest Canal, the covered alleys of Liscuis, the electricity museum in Saint-Aignan and more.
