Located on the border of the Port Campbell National Park in Victoria, this has become the highlight for all who take the trip along the Great Ocean Road. Although they are called the 12 Apostles, there are only 8 pillars left with the ninth having collapsed because of erosion in July of 2005.

They haven't "all" fallen, but the famous Twelve Apostles rock formation on Australia's Great Ocean Road is a testament to constant erosion. Despite the name, there were only nine stacks in the mid-20th century. The most dramatic collapse occurred on July 3, 2005, when a 50-meter-tall stack crumbled in front of tourists within seconds. Another smaller stack collapsed on September 25, 2009. As of 2026, only eight stacks remain standing, and several of those have developed large fissures at their bases. The formation is constantly changing; while existing "Apostles" fall, the Southern Ocean’s powerful waves are simultaneously carving new ones out of the limestone cliffs. This means the number of stacks will continue to fluctuate over the centuries, making the "Twelve Apostles" a dynamic geological site rather than a permanent landmark.