Just after you have driven over the causeway on the way back from Ile Grande is Prajou allée couverte which is much longer than Ile Grande allée couverte.
We were intrigued by the carvings on the inside of the end chamber which was cut off by a blocking stone. Moth crawled in for a better look. Two pairs of carved semi-hemispheres and a couple of long lines with dots running parallel have been interpreted as pairs of breasts by ‘experts’ – probably men – but I asked, could they not be testicles or even eyes? We were to keep seeing these odd carvings on stones all over Brittany…