Hi Swift
We stayed at Carnac in the Sep 2 years ago. We looked at Camping Menhirs but eventually opted for Camping La Moustoir just outside the town. Mnenhirs seemed a nice site and much nearer the beaches. The weather, I regret to say, was changeable we had quite a few days of heavy rain which made the camp site a little wet underfoot. The temperatures weren't too bad tho and we did sit outside the awning for afternoon tea and sundowners. The area is superb, my type of country, wild and rugged in places with some great fish restaurants - try the Calypso at ???, the site will have details, for the best grilled sardines ever. Bird watching good too. Reasonably good cycling in the area and some of the bigger towns, like Vannes, are worthy of a visit. We will go back sometime - it's on the list with all the other destinations we say we will go back to but never seem to.