Golden Gate Park is in San Francisco, California. It is one of the largest urban (park) in the United States. Over one million colorful flowers, trees and other plants grow in the park. But originally most of the park(cover) in sand. After a lot of work, it was finally built in 1870. Today, there are many people(visit) the park every day. They play basketball, soccer, golf and many other sports there. The park is closed in many places to traffic so people can walk, cycle, or skate(free).