Adrien Glover
April 20, 2012

Attention nature lovers, the outdoor-obsessed, and fresh air freaks: This weekend marks the kick-off of National Park Week (Apr. 21-29), the one week a year (actually, it's nine days) when all of our nation's 397 parks open their gates to the public and admission is free. Yes, free! How will you explore 84 million pristine acres?

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