A team of government scientists recently explored the bottom of the Pacific Ocean near San Francisco for a unique prize … sunken ships. Experts estimate that over the years, more than 300 ships have been lost at sea in a place called the Gulf of the Farallones, an area of more than 1,000 square miles in the Pacific just west of San Francisco.

Here to tell us more is James Delgado, director of the National Oceanic and Atmospheric Administration's Maritime Heritage Program.