Primarily located on Maine’s Mount Desert Island, the park encompasses wetlands, rocky beaches, and granite peaks, including Cadillac Mountain, the highest point on the eastern seaboard. Maple, birch, and poplar trees treat the senses to blazing reds, oranges and yellows beginning in September and peaking around mid-October. And while Acadia is insanely beautiful, it's just one of the many beautiful places to experience fall foliage in New England.