Question for the New Englanders

[SandlapperGT]

Wife and I are planning a trip to the great NE at the end of July.

We are flying in/out of Boston and would like to make it up to Bar Harbor. We arrive the afternoon of July 29th and depart Boston the morning of Aug 3rd.

Not enough time to see and do everything. Right now the thought is to arrive Monday afternoon and drive about an hour to hour an half up the coast stopping for dinner along the way. Hit Bar Harbor for a day/night, and then be back in Boston Thursday night or Friday morning.

The challenge is never having been there before what is must see/do, and how much time to spend. Example, is Salem worth it? Kennebunkport?

I've heard some good restaurants in Portland, and several good seafood places between Boston and Bar Harbor. Heard the walking tour and USS Constitution and worthwhile in Boston. Would love to hti some of the historic sites, some of the coastal towns, and also more local/less touristy stuff.

Would love to hear suggestions for what we should hit, and what is over-rated.

Thanks in advance!

Jamie