Ahhhhhhhhh !! The Carlton ! and the sailing club just the other side of the bridge. Flt Eng, stubbed his toe on an object in the sand one day, proved to be a bl***y big Mercury outboard half-buried. He made a few enquiries at the club, traced the local, indigenous, owner who announced that he had bought another one and didn't want it anymore, so F/E whistled up his Stn.Eng mate and a Land Rover, and crated it up, stuck a crew label on it and loaded it into the hold that night back to LHR.
Saw him later, said once the sand had been washed off, it was as new.