Welcome aboard CF, Otarki or should I say Giovanni and Clodagh?
Have a wonderful time sailing, and I hope you enjoy your contacts here.
There is an old thread here, that might interest you, it contains photographs of anchors in European Anchorages
, and is called "Photographs of Anchors Setting." If you enter that in the CF Custom Google
Search (under the Search menu) the whole long thread will come up.... It seems there are many anchorages
with thin sand over a hard substrate, and you'll be able to see which anchors penetrate the substrate.