Discover Corseul

Corseul offers a clear focus for travelers interested in Gallo-Roman history: the Monterfil archaeological site, the ArchéoMusée Coriosolis and the Temple of Mars reveal different aspects of the Roman past. There are also the ruins of Château de Montafilan and the La Vallée du Val de Gravel recreation area. This makes it easy to plan your stay around culture, a walk or time outdoors.

Roman city and sanctuary

Monterfil brings a Gallo-Roman commercial district to life. You can see warehouses, shops, homes and a 10 m-wide road. Together, they offer an impression of everyday life and the architecture of a prosperous era. The road’s width gives the site a tangible sense of scale; the different types of buildings also show that, alongside commerce, residential life was part of the district.

The ArchéoMusée Coriosolis explores the history of the Roman city in a different way: archaeological collections, interactive objects and models convey this historical context. Compared with Monterfil, the focus shifts from the layout of a commercial district to the history of the city as a whole.

The Temple of Mars is the largest Gallo-Roman sanctuary in Brittany. The temple has a freely accessible interpretation trail and the “Temple de Mars 3D” app, with audio, videos and interactive games. These forms of interpretation complement the sanctuary’s significance with explanations and digital content. As visitor technology may be updated, check in advance which features are currently available. There is also free on-site parking at the Temple of Mars; check the current parking regulations before your visit.

A Dinan Agglomération brochure from January 2025 also mentions a virtual reality room that immerses visitors in the Temple of Mars. Check separately whether this offering is scheduled and available. The same brochure states that the ArchéoMusée holds the French government’s “Tourisme et Handicap” label, describing it as providing an effective welcome adapted to the basic needs of people with disabilities. If the label is important for your plans, ask about its current certification status.

Castle ruins and walking route

The Château de Montafilan fortress was built in the 12th century by the Counts of MONTAFILAN DINAN on a steep hill surrounded by two deep, marshy valleys. The ruins on this hill on the other side of Corseul make a good destination for a walk. Trail conditions may change, so check the latest information in advance if you are planning a walk.

The municipality of Corseul designates a circular route called the “Circuit du Temple de Mars.” Route information may be revised, so check the latest details on the route before setting out if you want to walk this particular trail.

Recreation area and fishing

La Vallée du Val de Gravel is located on the RD 44 and is a recreation area suitable for family outings and picnics. Regulated fishing is also permitted here. If you want to fish, check the rules currently in force beforehand, as conditions and permits may change.

Discover more destinations: Dolo, Le Foeil, Saint-Thélo, Saint-Igeaux, Morieux, Plouha, Caurel, Plénée-Jugon

For the regional travel overview: Côtes-D’armor.