Travel back in time to the land of megaliths
Carnac and its 3,000 menhirs, Locmariaquer and its giant monolith... Countless tumulus, alignments and other dolmens have dotted the landscape of Quiberon Bay for 7,000 years.
Remains of millennia polished by rain and wind, Brittany's megaliths bear witness to the prehistoric era. These mysterious Neolithic standing or lying stones continue to intrigue researchers and mystics alike. Discover discovery walks to visit the region's megalithic sites, on foot or by bike. The illustrated discovery map of the megaliths of Carnac and the Morbihan shores is available free of charge from tourist offices.
That's why, since 2012, the association Paysages de Mégalithes has been working with local stakeholders on the UNESCO World Heritage listing of the megaliths of Carnac and the banks of the Morbihan. The final decision by the World Heritage Committee was handed down on July 12, 2025. This is the first World Heritage site in Brittany.
To celebrate UNESCO's World Heritage listing, join us from September 19 to 21 for " Mégalithes en fête ".Mégalithes en fête"an exceptional and historic event. On the program: concerts, workshops, drone show, discovery tours...
Discover the alignments of Carnac, listed among the largest megalithic sites in the world. They extend over more than 4 km. Dolmens, menhirs and tumuli make up this stone forest spread over 3 sites. It is said that these stone landscapes, unique for due to their huge size and their protected natural environment, are appreciated by the facetious Korrigans who gather there in the moonlight.
Take a trip back in time by participating in a guided tour of the Carnac alignments, proposed by the Maison des Mégalithes, preceded by an informative visit by the Musée de la Préhistoire de Carnac, and its rich collections.
- Carnac Alignments: Free access from October to March, Only by guided tour from April to September.
- Maison des Mégalithes: www.menhirs-carnac.fr
- Musée de la Préhistoire (Museum of Prehistory), open all year round: www.museedecarnac.com
Locmariaquer and the largest dolmen in Europe!
Face the largest dolmen and menhir in Europe! Three major pieces constitute the heritage of the Locmariaquer megalithic site:
- The large broken menhir, a giant of more than 20 metres long and weighing nearly 300 tons, lying on the ground in four pieces. It is the oldest of the site's monuments, dating from 5,000 years before our era, and the last vestige of a complex set of steles.
- La Table des Marchands: a Neolithic tomb with a seven-metre long passage, a burial chamber and a remarkable engraved ensemble.
- The tumulus of Er Grah, belonging to the category of closed vault spultures: it is a monument of exceptional dimensions (140 metres long) and built over several centuries.
Discover these three monuments during 45-minute guided tours: www.site-megalithique-locmariaquer.fr
Amazing: the giants of Erdeven
A less well-known but equally impressive site, walk along the Kerzerho alignment on the municipality of Erdeven. The site, which is open all year round, is 2 km long and is divided into 11 lanes. Still standing in the moor, the 190 menhirs - some of them very large - are called "the giants of Erdeven".
Take a 2-hour route between Kerzerho and the village of Crucuno in Plouharnel, passing through the Varquez woods, to discover this remarkable megalithic heritage. In summer, the Erdeven tourist office also offers guided tours.
Other ideas for visits around megaliths
Discover other must-see megalithic sites in South Brittany:
- The dolmen from Crucuno to Plouharnel, one of the most massive dolmens in Morbihan;
- The alignments and the enclosure of Kerbourgnec in Saint-Pierre Quiberon;
- The Braz menhir 3.40m high in the Camors forest
- The exceptional Cairn de Gavrinis in the Gulf of Morbihan.