https://www.youtube.com/watch?v=K99x2i1_kmo&feature=youtu.be Credit: Newsflash/Dubrovacki Dnevnik This is the moment the ominous fin of a large shark is seen swimming just metres from the beach of a popular British tourist hotspot in Croatia. The startling scenes were recorded by an onlooker at Copacabana Beach in the city of Dubrovnik, a popular tourist…