Tidal Moon.
Yes Tom with regard the tides..that villainous moon above has a lot to answer for, pulling them hither and tither.
..took that pic above fairly recently.
The tides are so low even I could swim to Calais ( by going half the way on foot ! ) ..ahermm ..cough...
and another pic from a previous time..odd what you see at the time of the full moooon
Okay...I cheated with the cats!