What is the name of the Island located in San Francisco Bay, 1.25 miles offshore, with facilities for a lighthouse, a military prison, and the Parade Grounds, a large concrete open area?
Parade Grounds The Parade Grounds is a large concrete open area on the south end of Alcatraz Island, off the coast of San Francisco, USA. They lie beyond Building 64. They were originally built in the 1860s on a barren site by the U.S. military who used the site for military drills and parades.
Bay Island (California) Bay Island is a small island located halfway down Balboa Peninsula in Newport Beach, California. It is the only island in the Newport Beach harbor islands that does not allow car traffic. The island is accessible via a small bridge that will only accommodate golf carts. The island has 23 residences, a botanical garden, courtyard garden, tennis court, and several private beaches.