sentences:  The Parks Conservancy is also collaborating with the Presidio Trust and the NPS on the New Presidio Parklands Project, that will create 10 acres of new national parkland in the Presidio of San Francisco, bridging the new Presidio Parkway tunnel that connects the Golden Gate Bridge to the city street grid.The Parks Conservancy has overseen several notable programs, sites, and campaigns, including Alcatraz, Crissy Field, Muir Woods, and the Golden Gate Bridge 75th Anniversary 
  
  Opened to the public in 1973 by the National Park Service, Alcatraz Island is a significant historical site, and one of the most popular tourist destinations in Northern California with some 1.4 annual visitors.In partnership with the National Park Service, the Parks Conservancy has overseen the $3.5 million revitalization of the island, which has included the restoration of its gardens, the enhancement of visitor amenities and experiences, and the addition of a museum store.