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.
Manhattan Beach Pier The Manhattan Beach Pier is a pier located in Manhattan Beach, California, on the coast of the Pacific Ocean. The pier is 928 ft long and located at the end of Manhattan Beach Boulevard. An octagonal Mediterranean-style building sits at the end of the pier and houses the Roundhouse Marine Studies Lab & Aquarium. Surfers usually can be seen below the pier. The pier includes the "Volleyball Walk of Fame," featuring plaques dedicated to past winners of the Manhattan Beach Open beach volleyball tournament. The pier is popular with locals, tourists, photographers, and artists and for fishing. It offers sunsets and vantage points from the shore and hillside.