Endurance swimmer Lewis Pugh plans to swim 62 miles around Martha's Vineyard to highlight shark conservation on the 50th anniversary of "Jaws" and to change public perceptions.

Endurance swimmer Lewis Pugh set out Thursday to attempt the first-ever swim around Martha’s Vineyard where the blockbuster movie “Jaws” was filmed 50 years ago. In so doing, the British-South African who has completed a long-distance swim in every ocean of the world will break his own rule against talking about sharks.