https://joy.videvo.net/videvo_files/video/free/2016-11/large_watermarked/161022_109_SanFrancisco_4K_preview.mp4 Ships Passing Alcatraz Island San Francisco A stationary shot of ships and boats passing Alcatraz Island, San Francisco. 1080pAlcatrazalcatraz islandamericaboatboatscaliforniaFranciscohistoriciconiconicislandjaillighthousemuseumoldpasspassingprisonsanSan FranciscoshipshipsStatesstyletourismtouristusa