The first leg of that trip (
Boston to
Niagara Falls) is the longest. So I would suggest a few stops on the way there - perhaps
Old Sturbridge Village (an hour west of Boston -it is an outdoor museum) and somewhere in the
Finger Lakes region which would be another 5 hours. From there it is only about 3 more hours to Niagra Falls. Then on the way east, drive along the shore of Lake Ontario to
Rochester (New York) and then go to
Burlington (Vermont) Drive down US7 to the
Green Mountain If you go this way it avoids 'backtracking' but it adds several hours to the trip, so you will probably want to break it up into three days, perhaps staying up by Rochester one night and Burlington a second night.
From here it is about 4 hours to
Mount Washington and
Bar Harbor is about another 4 hours. On the way back to Boston, you might want to stop at
Strawbery Banke Museum (which is an outdoor living history museum) or you might want to visit
Salem (Massachusetts)before you go back to Boston.
Ron
Alice