If you're in the Bay off Brewster at low tide, you can walk out on the sand bar in water up to your ankles, not many sharks there but the beaches are nice. Tom will probably tell you that recent attacks have been off Race Point Beach and off Highlands Nat'l seashore. As far as MV, last known attack was in 1975 off Amity Beach....just kidding.
“...last known attack was in 1975 off Amity Beach...”
I witnessed that in the Green Hills Theatre in Nashville, Tennessee. It was a so scary.