Yes, I've been to Martha's Vineyard and it is a hot spot

[theking]

...for great white sharks:

For ‘Jaws’ fans, there is no bigger island than Martha’s Vineyard

Martha's Vineyard, which stood in for the fictional Amity Island in the film Jaws, has embraced its role in cinematic history. Filmed on the island in 1974, Jaws created a new genre of summer blockbusters and forever linked Martha's Vineyard with a legacy of storytelling, suspense, and seaside Americana.