Discover Lassy: Nature, Hiking Trails and History

Lassy brings together nature, hiking trails and cultural history. There are several distinct themes to consider when planning your trip: the protected Vallée du Canut, the Église Saint-Martin, and the Moulin du Ritoir with the Maison des Énergies. The routes also differ in their descriptions and landscape features. You can plan your outings according to whether you want to focus on a specific hiking route, heathland, sunken lanes or the history of energy.

Nature and hiking trails

The Vallée du Canut in Lassy is a natural area protected by the Département. Heathland, woodland and meadows alternate here. Its biodiversity includes 54 butterfly species and 13 protected mammal species, including eight bat species. Together, the different landscape features and species offer a tangible connection with nature.

A marked 2.7-kilometre trail passes through the most scenic parts of the Vallée du Canut. The Circuit des Landes, meanwhile, runs through the valley across heathland. Each route highlights different points of reference: the marked trail specifies its length, while the Circuit des Landes is described in terms of its route through the heath.

The Circuit des Ruisseaux starts in Lassy and is a moderately difficult 10-kilometre circular hike that takes about 2 hours and 30 minutes. Compared with the marked 2.7-kilometre trail, this route is considerably longer. Its difficulty level, distance and approximate duration help you estimate how much time to allow for the loop. The Chemin des Ruisseaux has different distinguishing features: it follows sunken lanes and passes the Croix de l’Ollivrais. This route can therefore be identified by its landscape and the named cross, while the length and time frame of the Circuit des Ruisseaux make planning easier.

Church and Moulin du Ritoir

The Église Saint-Martin was a priory church under the Abbaye Notre-Dame de Paimpont. As a former priory, it dates to the 16th and 17th centuries; it was fully restored in 1999. Its former ecclesiastical role, historical period and year of restoration provide several specific points of connection with the area’s history.

The Moulin du Ritoir ceased operating after the First World War. Beside the mill, a stone bridge spans the Canut and connects Lassy with Baulon. These bring together different historical and geographical points of interest: the mill recalls its former function, while the bridge links the two localities.

The former miller’s house at the Moulin du Ritoir offers activities and guided tours for groups. If you are travelling as a group, you can include this visit in your plans alongside hikes and exhibitions.

Maison des Énergies

The Maison des Énergies is housed in the renovated former Moulin du Ritoir and has two exhibition rooms. Its permanent exhibition explores the history of energy; it is complemented by temporary educational exhibitions, whose titles may change. The venue thus combines a permanent core theme with changing educational offerings. For your stay, the Maison offers a different focus from the valley and hiking trails: the history of energy and educational exhibitions.

Discover more destinations: Pacé, Brie, Montours, Clayes, Meillac, Saint-Georges-De-Gréhaigne, Louvigné-Du-Désert, Coësmes

For the wider travel guide: Ille-Et-Vilaine.