The Twelve Apostles is one of the most well-known highlights of the Australia's Great Ocean Road.
They are massive limestone structures that tower 45 metres above the tempestuous Southern Ocean. Created by constant erosion of the limestone cliffs of the mainland beginning 10–20 million years ago, the stormy Southern Ocean and blasting winds gradually eroded the softer limestone, forming caves in the cliffs. The caves eventually became arches and when they collapsed rock stacks were left isolated from the shore. Behind the eight remaining stacks (five have fallen since their discovery) are majestic cliffs, around 70 metres high.
The Twelve Apostles are located 275 kilometres west of Melbourne in the Port Campbell National Park, approximately a four-hour drive along the Great Ocean Road.
