Have you thought of Plymouth? It is beautiful with plenty to do and see. Cranberry bogs, wineries, shopping, whale watches, the mayflower, Plymouth Plantation.....on and on and on
You might also look into white water rafting if that interest you. Kennebec River and Dead River offer it. If you haven't already, check out visitMaine.com. Hope you enjoy wherever you go!
Mount Desert Island Maine. Bar Harbor is fabulous- the whole island is fabulous. I'm heading there next week- Let me know if I can be of any help- I only live about an hour from there!