The Serpentine (also known as the Serpentine River) is a 40 acres (16 ha) recreational lake in Hyde Park, London, England, created in 1730 at the behest of Queen Caroline. Although it is common to refer to the entire body of water as The Serpentine, strictly the name refers only to the eastern half of the lake. Serpentine Bridge, which marks the boundary between Hyde Park and Kensington Gardens, also marks The Serpentine's western boundary; the long and narrow western half of the lake is known as The Long Water. The Serpentine takes its name from its snakelike, curving shape, although it only has one bend.
Hyde Park is one of the largest parks in London, and one of the Royal Parks of London, famous for its Speakers' Corner. The park was the site of the Great Exhibition of 1851, for which the Crystal Palace was designed by Joseph Paxton