America's Cup 2013 Race in San Francisco Bay.
America's Cup 2013 two finalist hydrofoil catamarans racing on the San Francisco Bay.
For more info about hydrofoil sailboats, go to en.wikipedia.org/wiki/Sailing_hydrofoil.
For more info about America's Cup 72 class boats (AC72), go to en.wikipedia.org/wiki/AC72.
For more info about the America's Cup race, go to en.wikipedia.org/wiki/2013_America%27s_Cup and en.wikipedia.org/wiki/America%27s_Cup.