A long ship passes under Golden Gate Bridge. Shot from the top of the bridge looking downwards. The bridge and Marin. Inter title reads ‘One of the world’s finest natural harbors’. Aerial shot of Bay Bridge. Yachts being manned by sailors. Young people raise sails on small sail boats. Yachts on the bay with San Francisco in the background. Inter title reads ‘Alcatraz- the grim Federal prison in San Francisco Bay’. Coit tower on Telegraph Hill.