When I was stationed at Otis (Pave Paws, 6th MWS) I used to go to Sagamore Beach, Sandwich Beach, Veterans Memorial in Hyannisport, and, when I was dating this girl from Harwich, Nauset beach in Orleans. Never, ever saw a seal, let alone a shark. Caught lots of flounder on the Rt 28 bridge over Great Pond Falmouth. Caught a 40 pound striper in the Canal. That was the biggest sea creature I ever saw there.
I left in 1982. Musta been some quick breeding seals, then again, that was almost 40 years ago (God I’m old!).
If you were to go down to Nauset beach in Orleans in August or September, you might not get a chance to go swimming, as some days so many white sharks are spotted, the life guards close the beach down.
This white shark/seal problem has changed Cape Cod. - Tom