How tall are the Twelve Apostles at Port Campbell and how were they formed?
The Twelve Apostles rock stacks were formed by the gradual erosion of softer limestone areas, creating caves in the cliffs. These caves eventually wore away through wind and wave erosion to become arches and when they collapsed, rock islands were left detached. The cliffs rise to nearly 70 metres in some places and the highest Apostle is approximately 50 metres from base to tip.
