Dreaming of summer? You might want to head to Sand Beach in Acadia National Park. Sand Beach was just selected by readers of USA Today and 10 Best as the 5th Best National Park Beach in the United States.

The National Park Service provides lifeguards at Sand Beach, which is accessed by the Park Loop Road. The water is extremely cold, usually not exceeding 55 degrees even in the dog days of summer. Speaking of dog days, pets are not allowed on the beach from May 15 through Sept. 15.

Changing rooms and restrooms are located next to the parking area and the free Island Explorer has stops there, at :25 past and :55 past the hour from the end of June through Columbus Day.

Acadia National Park is celebrating its Centennial Anniversary. Here's where to go to check out all the happenings.

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