On our way to the Otways we stopped off at the 12 Apostles. For most people this will be the highlight of your trip and definitely not just a stop off!
The Apostles are made up from Limestone cliffs that have been eroded over 10 million years ago by the strong winds and the crazy waves and ocean. The ironic thing is that there aren't 12 anymore because a few have been totally eroded - I think I counted 7.