The only National Park in Maine, Acadia National Park was established to protect the natural beauty of the Atlantic Coast. Most of the park lies on Mount Desert Island, where visitors can relax on Sand Beach, fish in the Great Long Pond, and see impressive sights like the rocky inlet known as the Thunder Hole. Many of the most popular attractions can be reached by car, but tf you're feeling particularly ambitious, you can even hike the majestic Cadillac Mountain, the first place in the country where you can see the sunrise between October and March.

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