No way this has been filmed on Crane Beach, Ipswich!

O.k., we watched the entire movie, then the entire bonus material. I also paid attention to the synopsis/credits.
Now I wonder why the imdb claims that this film has been partly filmed on Crane Beach near Ipswich, MA. There are no beach scenes, this has been entirely filmed in Boston.
I love Crane Beach and was looking forward to these scenes...only they never came :(.
So now I assume that these scenes must have been cut later on.