Georgia residents can get a free, family pass to Zoo Atlanta. You must have a valid library card. Visit your local library, go to the circulation desk, and simply ask for the Zoo Pass DVD. You have to check out the DVD and return it. Your receipt will serve as your pass. This free pass will admit two adults and two children. It must be used within seven days. For Columbus and surrounding residents, officials at the Chattahoochee Valley Regional Library System say all libraries are participating.