The Sutro Baths was a large, privately owned public saltwater swimming pool complex in the Lands End area of the Outer Richmond District on the West Side of San Francisco, California. Built in 1894, the Sutro Baths was located north of Ocean Beach, the Cliff House, Seal Rocks, and west of Sutro Heights Park. On March 14, 1896, the Sutro Baths were opened to the public as the world's largest indoor swimming pool establishment. The baths were built on the western side of San Francisco by wealthy entrepreneur and former mayor of San Francisco (1895–1897) Adolph Sutro.