Great Barrier Reef threats and survival

The river Murray forms part of one of the world's largest river systems. Together with the Darling River the 'Mighty Murray' runs for 1450 kilometres, making up the single longest, continuous waterway in Australia. This program looks at how the river formed and at how it has changed both naturally and as a result of human use.

Located in the driest region of Australia, Lake Eyre is the largest salina or salt lake in the world... Lying below the sea level, the lake is the termianl point of a great internal continental drainage system. This program looks at the changing climatic conditions which led to the formation of the lake and at the geographical development of the lake and its water sources.

The Great Australian Bight has been described as the edge of the world...so final and so dramatic is this arid coastline. This program looks at how the coastline came to be and explores the dynamic nature of the area and coastal features including the caves, blowholes and sand dunes.