Saint-Aignan: Forest, Lac de Guerlédan and cultural heritage

Saint-Aignan offers a range of starting points for planning a trip: the forest landscape of the Forêt de Quénécan, activities at Anse de Sordan, and traces of sacred and technological history. There are also hikes of varying lengths, durations and difficulty levels.

The forest and the formation of Lac de Guerlédan

The Forêt de Quénécan covers about 4,000 hectares, 900 hectares of which lie within Saint-Aignan. This comparison of sizes shows that the forest extends beyond the municipality, while a substantial part belongs to Saint-Aignan.

Lac de Guerlédan was created by the construction of the hydroelectric power station between 1923 and 1930. The Blavet, the Canal de Nantes à Brest and 17 locks were flooded in the process. The affected area stretched from Saint-Aignan in the east to the Nicholo lock in the west. The lake’s formation is therefore closely linked to the transformation of these waterways.

Water activities and hiking

Anse de Sordan is the only easily accessible point on the southern shore of Lac de Guerlédan. Its gently sloping shore is suitable for launching small boats. There is a beach with opportunities for swimming, other water sports and fishing. There are also numerous forest walks along the shores of the lake. Swimming conditions and facilities may vary seasonally; check the current local conditions before swimming.

The purple Hent Glaz Circuit is a 4 km hike to Chapelle Sainte-Tréphine, the lake and the dam. Those comparing longer routes will find two trails of almost the same distance but with different duration and difficulty ratings: the Circuit du Blavet is an easy 12.7 km hiking route and takes about three hours. The Circuit du barrage de Guerlédan is 13.0 km long, rated difficult and takes about four hours. It can be used on foot, on horseback or by mountain bike. Seasonal restrictions may apply to this route; check the current route conditions in advance.

Sacred art and the history of technology

The nave and transept of the Église paroissiale Saint-Aignan date from the 15th century. A distinctive feature is the altarpiece in the north transept: it depicts the Tree of Jesse with numerous figures in high relief. The description thus refers both to the artwork’s form and to its specific location within the church.

Chapelle Sainte-Tréphine is a neo-Gothic chapel dating from 1897. A 300 m footpath leads to it from the dam’s upper car park. The annual Pardon de Sainte-Tréphine takes place in May. Its procession includes the route to the neo-Gothic Fontaine Saint-Trémeur. If you are travelling specifically for the Pardon, check the current programme in advance.

The Électrothèque du lac de Guerlédan is dedicated to the history of electricity and the construction of the hydroelectric power station. The offerings also include workshops, guided tours, and activities for families and children. As programme details may vary seasonally, it is advisable to check the current programme before visiting.

Discover more destinations: Île D'houat, Molac, Pluvigner, Belz, Locqueltas, Rieux, Brech, Saint-Caradec-Trégomel.

For the broader travel overview: Morbihan.