Acadia National Park is one ... Instituted as a national park in 1919, this piece of Maine is home to gorgeous forests, boulder-strewn clifftops, and a stunning coastline all in one place.

Sand Beach is open year-round. Park visitors agree: riding along the 27-mile Park Loop Road is the best way to do a quick tour of Acadia (and makes a strong case for renting a car). Popular sights ...