Note that the island this (beautiful, from photos) allee couverte is on only displays correctly on Googlemaps when viewed as ‘satellite’ or ‘hybrid’.
Thursday 12 November 2009: Just discovered this allee couverte on a couple of websites. Seems to be actually on an island & have been unable to find out how easy it is to get to (so far...!)
camping-esperance.com/IMG/jpg/milliau_site.jpg
Maybe on our next trip....