Zyg Gregorek, 65, is the first recreational fisherman anywhere to catch all 27 species in the three so-called "royal slams" set by the International Game Fish Association (IGFA) – hooking nine species of shark, including the great white, ten of billfish and eight of tuna.
His journey has taken him to some of the most remote corners of the world: from South Africa to Australia, Mauritius and the Galapagos Islands, and from America, Madeira and Ascension Island to Mozambique.
Mr Gregorek, who caught his first shark, a 40lb blue, off the coast at Padstow in Cornwall, completed his royal slams when he landed a 200lb thresher shark off San Diego – a species he had been trying to catch since 2004.
With a name like Zyg Gregorek, how could he miss??