The Great Australian Bight is situated from east to west along a large part of the coast in Western and South Australia. It is 200 kilometres long and ranges in height from 90 to 130 metres. It is the world's longest unbroken cliff line. The huge limestone cliffs of the Bight run between the Nullarbor and Eucla. There are many lookouts along the Bight to view the spectacular cliffs.
It use to connect to another continent, but broke away about 40 million years ago. You can see the chalky grey rock at the bottom of the cliff still which was formed 40 million years ago.