Standing stones in the Kermario alignment
|Intercommunality||Côte des Mégalithes|
|• Mayor (2014—2020)||Olivier Lepick|
|32.71 km2 (12.63 sq mi)|
|• Density||130/km2 (350/sq mi)|
|Time zone||UTC+01:00 (CET)|
|• Summer (DST)||UTC+02:00 (CEST)|
|Elevation||0–45 m (0–148 ft) |
(avg. 16 m or 52 ft)
|1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.|
Its inhabitants are called Carnacois in French. Carnac is renowned for the Carnac stones – one of the most extensive Neolithic menhir collections in the world – as well as its beaches, which are popular with tourists.
Located on a narrow peninsula halfway between the medieval town Vannes and the seaside resort Quiberon, Carnac is split into two centres - Carnac-Ville and Carnac-Plage (the beachfront). In total there are five beaches, including la Grande Plage, and further to the east, Plage Men Dû and Beaumer.
Carnac is famous as the site of more than 10,000 Neolithic standing stones, also known as menhirs. The stones were hewn from local rock and erected by the pre-Celtic people of Brittany. Local tradition claims that the reason they stand in such perfectly straight lines is that they are a Roman legion turned to stone by Pope Cornelius.
The Carnac stones were erected during the Neolithic period which lasted from around 4500 BC until 2000 BC. The precise date of the stones is difficult to ascertain as little dateable material has been found beneath them, but the site's main phase of activity is commonly attributed to c. 3300 BC. One interpretation of the site is that successive generations visited the site to erect a stone in honour of their ancestors. A recent assertion states that the megaliths were set as protecting shields for an army of defenders of Carnac as a pre-erected burg against attacking enemies. This theory has been presented by Santiago Sevilla in a book published in Amazon.com under the title of: Paleolithic Studies, Stonehenge and Carnac.
In 1864, La Trinité-sur-Mer and its port were separated from the commune to create their own commune and parish. The fishermen found the church in Saint-Cornély to be too far from the port, and had one built in a more convenient location. La Trinité-sur-Mer thus became both a parish and a separate commune.
In 1903, a seaside resort was created on the old salt flats, developing extensively through the 1950s to create the split Carnac of today: Carnac-ville and Carnac-plage. In 1974, a renowned hydrotherapy centre was sponsored by champion cyclist Louison Bobet, retiring after having won the Tour de France three times from 1953 to 1955.
Since the end of World War II, Carnac has become a popular site for tourists seeking a break from the traditional destinations on the Côte d'Azur. During the months of July and August, the number of people in the town increases significantly from the influx of tourists and summer residents. The beaches of Brittany are rarely able to offer warm waters on par with those of their southern cousins; however local factors have ensured that Carnac continues to attract large numbers of visitors. Wind and waves in the region attract day and cruise sailors. The Standing Stones and other monuments in the vicinity provide some cultural attraction and Carnac-Plage's variety of bars and clubs ensures that a younger set can amuse themselves at night.
There are a number of camping grounds in the woods around Carnac, some clustered around various lakes such as the Étang du moulin du lac which is immediately to the west of the river Crac'h. There are also other campsites near to Carnac including Camping le Moulin de Kermaux, Des Menhirs and La Grande Metairie. 
Carnac is home to "École de Voile de Carnac" which provides sailing and windsurfing lessons and rentals to sailors of all levels of experience. The geography of the Bay of Quiberon provides ideal conditions for sailing. The Peninsula of Quiberon provides protection from Atlantic waves and turbulence while allowing the Gulf Winds to enter the bay.
For windsurfers, the Saint-Colomban beach is located in Carnac-Plage. The beach is very popular with windsurfers, as its position allows for the best exploitation of strong winds from the West. Other beaches in the area provide equal access to the winds of the bay but windsurfers may find themselves frustrated the areas of dead air close to their shores.
Other beaches in Carnac include Bihan Plage, Légenèse Plage, Grande Plage, Beaumer Plage and Men-Du Plage. 
Inhabitants of Carnac are called Carnacois.
The municipality recently launched a linguistic plan and signed a document to encourage and facilitate the translation of municipal documents and news materials into the Breton language.
- Carnac: Guide pratique 2006 (provided by Carnac tourist office)
- "Populations légales 2016". INSEE. Retrieved 25 April 2019.
- France Holidays, Brittany
- Campsites in Carnac
- Beaches of Carnac
- (in French) Pact between the town and the Office of the Breton language
- (in French) Ofis ar Brezhoneg: Enseignement bilingue Archived November 14, 2008, at the Wayback Machine
|Wikivoyage has a travel guide for Carnac.|
|Wikimedia Commons has media related to Carnac.|
|Wikisource has the text of the 1911 Encyclopædia Britannica article Carnac.|