Is La Brecquette Manor buried beneath these sands?
650 years ago, a man called John Willis owned a large house - the Manor of La Brecquette, at L'Etacq.
It was surrounded on two sides by a forest of oak trees. One year, waves moved up St. Ouen's beach and began to flood the land.
The sea rose until it covered the manor, and eventually it covered the oak forest as well.
When the tide is very low at St. Ouen, you can still see black tree stumps - the petrified forest, all that remains of the oak trees that once surrounded the manor.