Of the 84 marine and coastal units administered by the National Park Service, Golden Gate National Recreation Area in California is one of the most popular. &nbsp;There are many beaches to enjoy and explore in Golden Gate including Stinson Beach, Muir Beach, Tennessee Valley Beach, Rodeo Beach, Baker Beach, and Ocean Beach. This photo shows the famous Cliff House shot from Ocean Beach. &nbsp;In 2010, Golden Gate NRA had 14.3 million visits that contributed &nbsp;$264 million and 3,445 jobs to the local economy. Nationwide, coastal and marine units of the National Park System contributed &nbsp;$3.5 billion, not counting other Interior coastal units.Photo, National Park Service&nbsp;