Nude beaches

Any good beaches in Boston. I mean right in Boston; not Cape Cod. I have a conference to go to next Summer. Wife loves the beach so Im hoping I can take her to a local beach every afternoon, where she can wear a thonged bikini and be admired.
 
We visit nude beaches often. It is funny as most folks that go there say it is not a sexual thing to do but I must respectfully disagree. I find it impossible to not look at nude women and not be turned on in some way. Likewise, when guys are staring at my nude wife, it is a turn on for me and I am sure for them as well. Love to go.