Had you planned your trip for next week or so, I would have recommended the Lobster Fest in Rockland. If you happen to be an afficionado of the aforementioned shellfish, you would have a WONDERFUL opportunity to savor it in a variety of ways, and enjoy the annual activities. Check out
http://www.mainelobsterfestival.com/ for more details. My family and I went in 2001 and had a GREAT time !
ED