Scientists finally know how old the Twelve Apostles are – and they’re much younger than anyone thought

By Stephen Gallagher, Associate Professor, School of Geography, Earth and Atmospheric Sciences, The University of Melbourne

Every year, millions of visitors stand at the clifftop lookouts along Victoria’s Great Ocean Road and gaze out at the Twelve Apostles. These towering limestone stacks, rising up to 70 metres above the Southern Ocean, are some of Australia’s most recognisable landmarks.

Yet despite their fame, no-one has ever really understood how they came to be. Until now.

In new research published in the Australian Journal of Earth Sciences, my colleagues and I finally answer that question – and the story involves…

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