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Stretching across the countryside in southern Brittany, the Carnac stones are one of Europe’s most extraordinary prehistoric sites and one of the most unusual places to visit in Brittany. Thousands of standing stones, arranged in long rows, have stood here for thousands of years, but their exact purpose remains a mystery.
I’ve known Carnac since childhood, as my family lives in Brittany and recently returned to explore the site again. But is it worth visiting now that it’s been fenced and protected? And what if you’re not passionate about history or archaeology? Here’s what you can expect, who I think will enjoy it, and my tips for making the most of your visit.
Who will enjoy Carnac, and who might not?
Carnac is an unusual attraction, and I don’t think you need to be interested in archaeology to enjoy it. Even a short stop to see the alignments and appreciate their scale is worthwhile: seeing thousands of prehistoric stones arranged across such a large area is fascinating in itself. It’s one of those places that makes you stop and wonder how people managed to create something on this scale thousands of years ago. But set the right expectations…
You’ll particularly enjoy Carnac if you:
- Enjoy unusual places and landscapes.
- Are fascinated by ancient legends and the unanswered questions surrounding our past.
- Enjoy photography, walking and exploring different viewpoints.
You might be less impressed by Carnac stones if you:
- See only a long succession of rocks without appreciating the mystery of the place.
- Expect enormous individual stones like Stonehenge. Some are actually surprisingly small.
- Want to walk freely among all the standing stones, as many sections are fenced off to protect them.
Understanding the Carnac stones
The Carnac stones are prehistoric standing stones, known as menhirs, arranged in long rows. What’s particularly fascinating is that archaeologists still cannot confirm exactly why these monuments were built. Various theories have been proposed, but their original purpose remains a mystery.
The alignments date back to the Neolithic period, around 6,500 years ago. There are approximately 3,000 standing stones spread across almost 4 km, making Carnac one of the most remarkable megalithic sites in the world. There is a local legend that the stones were once soldiers who were turned to stone.
It’s so big you cannot see them all at once. The full site is divided into groups: Ménec, Kermario, Manio and Kerlescan. But the area is not just about rows of standing stones. If you want to explore further, you’ll also find individual menhirs, dolmens (prehistoric stone tombs) and tumuli (burial mounds). You can learn more on this leaflet.
Our experience visiting the Carnac stones
We only spent around one hour in Carnac on our way back from Quiberon. It’s the kind of places that I’d quickly find repetitive, so I was happy with only a few quick stops. We stopped at Ménec and Manio, and at the viewpoint overlooking the Kermario alignments.
To explore the site, you can join a guided tour to enter some of the alignments, follow the walking trails between the different groups of stones or simply drive between the main sites to quickly get an idea of the scale and appreciate how extensive they are.
Ménec alignments
The Ménec alignments were our first stop. This is one of the best-known sections of Carnac, with long rows of standing stones extending across the landscape. You can get a good view of the stones from outside the fences, so you don’t necessarily need to join a tour to appreciate them. There is a car park near the Maison des Mégalithes, making this a convenient place to stop. But parking arrangements depend on the season: it’s supposed to be for paying visitors only.
I was immediately struck by the number of stones. Individual menhirs aren’t necessarily as large as you might expect, particularly if you’ve already visited Kerzerho nearby or have Stonehenge in mind, but seeing so many of them arranged in parallel rows is quite something.
Kermario alignments and the viewpoint
We also stopped near the Kermario alignments, another major group of standing stones. This section is particularly impressive, with some of the largest stones in the Carnac alignments. During our visit, we could see people walking among the stones inside the fenced area. This was possible because some sections can be opened for independent visits during the quieter months.
One of the best ways to appreciate the alignments is to climb up an old windmill offering a slightly elevated view over the stones. Be careful, it is labelled as Moulin de Kermario on Google Maps but might be referred to as Moulin de Kermaux on the Carnac tourism website, which is another spot on Google Maps that led us to the wood with nothing around. I particularly enjoyed this viewpoint because it offers a different perspective from simply walking among the stones.
Maison des Mégalithes and guided tours
The Maison des Mégalithes is the visitor and interpretation centre near the Ménec alignments. It closes early during the off-season so we had to skip it. There is also a terrace with panoramic views over the area.
If you want to understand even more about the history and archaeological significance of the stones, joining a guided tour is a good option. The tours take you inside one of the main alignments, where a guide explains the history of the site and the different archaeological theories. This is also the main way to access the fenced areas during the busier months.
Free walking trails
The best way to fully explore the Carnac stones independently is using the free walking paths around the alignments. You can download the official Carnac walking map to plan your route.
- Ménec loop: approximately 700 m, with an accessible route for people with reduced mobility.
- Ménec to Kermario: approximately 1.5 km one way.
- Ménec to Kerlescan: approximately 3.5 km one way.
If you don’t want to walk for that long, you could use a Segway!
Carnac, Kerzerho/Erdeven: which megalithic site should you visit?
If you’re exploring this part of Brittany, you might also want to visit the Kerzerho alignments near Erdeven. They are another impressive group of prehistoric standing stones and I actually prefer the atmosphere there.
I’ve visited both sites several times over the years, and they offer quite different experiences.
The individual menhirs at Kerzerho (Erdeven) are generally more impressive in size, and I find the setting much nicer for a walk. It’s a quieter, less touristy place where you can wander among the stones and enjoy a more mysterious atmosphere. Erdeven is also an important megalithic site, with around 250 rocks, including a beautiful dolmen on the edge of the town (Mané-Croc’h), but that’s still a fraction of the roughly 3,000 stones at Carnac. You won’t get quite the same wow factor that comes from seeing the alignments stretch across such a vast area.
Carnac really is on another scale. There are so many more stones, arranged in several alignments across a much larger area. The combination of long rows of menhirs, individual standing stones, dolmens and tumuli makes it a much more extensive megalithic landscape. I also find Carnac more spectacular because of the sheer number of stones. It’s difficult to understand the scale until you see several of the alignments and drive between them.
If I had to choose only one, I’d recommend Carnac. It feels more unique and spectacular, and I think it’s one of those places that everyone should see at least once. However, if you have time, I would visit both. Kerzerho is a lovely alternative if you prefer a quieter walk and want to see some particularly impressive individual stones.
Is Carnac worth visiting?
Absolutely! I think Carnac is a unique thing to do in Brittany, and you don’t need to be interested in history or archaeology to enjoy it. What makes it special is the sheer scale of the site. Seeing thousands of stones arranged in long rows across the countryside is quite mind-blowing and you don’t necessarily need to spend a long time there to get this.
We visited in late October, and I think it was a particularly good time to explore the site. There were very few visitors, parking was easy and we could stop at the different sections without worrying about crowds. I imagine finding a parking spot can be challenging in summer. If you can choose when to visit, I’d definitely consider the quieter months. We were the only ones left at the site at sunset.
What about the fences?
You may have heard that Carnac is no longer as enjoyable since the alignments were fenced off. Things have changed considerably since when we could wander freely among the stones, including the number of visitors, so I understand why access needed to be restricted to protect this exceptional heritage.
I still think Carnac is worth visiting, as you don’t need to get close to the stones to appreciate the scale of the alignments. And if it’s really important for you to get closer, you can join a guided tour.
One advantage of visiting outside the peak season, between October and March, is that some sections can be opened for independent visits, allowing you to walk among the stones without joining a guided tour. Some areas remain closed to allow sheep to graze and help maintain the site. Check with the Maison des Mégalithes to find out which sections are accessible during your visit. And please don’t cross any fences when an area is closed, as they help protect both the stones and the surrounding vegetation.
Have you visited the Carnac stones? Share your experience in the comments below!
Where are the Carnac stones?
The Carnac stones are located in southern Brittany near the coast of the Gulf of Morbihan. The main alignments stretch across the countryside around the town of Carnac, about 30 minutes from Vannes and 1 hour 30 minutes from Lorient by car.
