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.
Diamond Head Lighthouse Diamond Head Lighthouse is a United States Coast Guard facility located on Diamond Head in Honolulu, on the island of Oʻ ahu in the State of Hawaiʻ i.