Although the 2 million-acre Acadia National Park has hundreds of places to hike, bike, snowshoe, boat, swim and horseback ride, crowds can make it hard to fully appreciate the park, so consider taking a break from the area to explore Mount Desert Island’s Cadillac Mountain. From this impressive natural wonder, which stands above the charming port town of Bar Harbor, you’ll enjoy views of the Atlantic Ocean, glacier-carved cliffs, granite hills, forests and Somes Sound, a 7-mile-long fjard.