From Jerripedia
A Percival Dunham photograph of men swimming in the Lavoir
Lavoir des Dames, the fairies’ bath, or Le Puits de la Chuette, as it should be known, is a mysterious rectangular hollow in the rock at half-tide level on Jersey's north coast between Ronez and Sorel. It has been suggested that it is man-made, but it is now recognised as more likely to be a natural phenomenon, although how such a regular shape could have been created is still open to considerable speculation.
