1. The Great Barrier Reef in Queensland
2. Uluru (or Ayers Rock) in the Northern Territory
4. Flinders Ranges in South Australia
5. Phillip Island in Victoria
7. Remarkable Rocks on Kangaroo Island in South Australia
It’s estimated that weather and water erosion gave Wave Rock its rounded appearance about 60 million years ago. But what’s even more amazing is that in 1960, crystals from a section of it (Hyden Rock) were found and rumored to be 2,700 million years old.