The famous
Golden Gate Bridge that extends from the Pacific Ocean
into the bay connects San Francisco with a mountainous
peninsula called the Marin headlands that is primarily known
for beautiful scenery.
Alcatraz Island with its abandoned prison is situated
in the middle of San Francisco Bay. The city of San Jose
lies about 30 miles south of San Francisco at the southern
tip of this extensive bay. The area near San Jose and Santa
Clara is known as "Silicon Valley", home of the largest
concentration of electronics and computer firms in the USA.