The Twelve Apostles is a collection of limestone stacks off the shore of the Port Campbell National Park, by the Great Ocean Road in Victoria, Australia. Their proximity to one another has made the site a popular tourist attraction. The Twelve Apostles is a collection of miocene limestone rock stacks jutting from the water in Port Campbell National Park, between Princetown and Peterborough on the Great Ocean Road.
Tourism activities (including helicopter tours) are conducted from a visitor centre, situated on the inland side of the Great Ocean Road; with parking and viewing areas. Parks Victoria classifies the structure as nationally significant, with the area being one of Victoria's major tourist features; attracting approximately two million visitors a year. Parks Victoria was responsible for the construction of board-walks, tracks, and viewing areas.