The Great Australian Bight: Massive Limestone Cliffs on the Southern Coast

The Great Australian Bight is the vast, open bay along Australia's southern coastline, stretching from the Eyre Peninsula (SA) to Cape Pasley (WA).

Geology

Its defining feature is a continuous line of towering limestone cliffs (up to 100m high), formed from ancient marine sediments. The cliffs, headlands, and long sandy beaches create a dramatic, rugged coastline.

Marine Life

A biodiversity hotspot: southern right whales (calving), dolphins, sea lions, great white sharks, diverse fish. The nutrient-rich upwelling supports a productive ecosystem.

Significance

• One of the world's largest coastal wilderness areas.
• Critical whale nursery.
• Oil/gas exploration contested due to environmental sensitivity.

The Bight is a geological marvel and ecological treasure of global importance.