The conversion of the U.S. Sixth Army's military installation at the Presidio into a national park encompasses the restoration and rehabilitation of the natural landscape of wetlands and dune fields along the San Francisco Bay waterfront. New convoluted landforms generated by bracing wind and wave attacks on an otherwise relentlessly flat site. Crissy Field will integrate a diversity of recreational uses with a vigorous and dynamic environment, all within the context of an enduring historical landmark.  The perfect place to take in the Bay, romp with a canine friend, or tackle some of the most demanding windsurfing and sailing California has to offer.