Acadia National Park, set on Maine's coastline, is best visited from late August to mid-October for stunning views. The park offers extensive outdoor activities, including hiking the 150 miles of ...

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Editor’s Note: CNN.com’s weekly Summer in the Park series turns to rangers at the United States’ most popular national parks to get insider recommendations for your visits, whether you have just one ...

One of the charms of Acadia is the way subtle human “improvements” work with the park’s thick spruce-fir forests, rugged mountains, and steep cliffs to make it all accessible—and just a bit thrilling.