CADILLAC MOUNTAIN. Watching sunrise from the 1,528-foot-high summit of Cadillac Mountain (the high point in Acadia) is a popular rite of passage for park visitors for good reason. The view from the summit is one of the best in all of New England: 360 degrees, taking in Frenchman Bay, the Porcupine Islands, and the surrounding peaks of Mount. The Official Website of Maine's DownEast Acadia Region. Otter Cliffs. The dramatic 110-foot rock walls of Otter Cliffs are one of the most recognized geological features in Acadia National Park. Located on the eastern edge of Mount Desert Island, Otter Cliffs comes into focus as you travel the Park Loop Road past Thunder Hole and the sea stacks ....