But, there have been "several cases of divers having found other bluestones there" as well - though none authenticated I suppose.
Got a link to any news items/articles there Nigel (still can't find the press cutting I keep wittering about and it's driving me crazy :-( Reckon it's important though - if there are ancient worked bluestones on the seabed around Wales that as near damn proves they were being transported in antiquity and the glacial theory is dead. 