Here's some more Norman history for you! Again out on another geocache, this time over by the western coast we found a lavoir and the cache hidden in the stone wall behind it. We were so preoccupied with finding the cache in between muggle sightings that we didn't notice the board at the entrance to the little park.
It turns out this lavoir is famous! I've never heard of la Mère Denis before but Mystery Guest says that the ad that aired during the 80's is really famous. Considering that there was even a Japanese ad I'd say so!
Here's the original ad for your viewing pleasure (the sound is really low).