

Fraser Island, Queensland
Time and Tide Fraser Island is the largest sand island in the world, and apparently has been building up over hundreds of thousands of years. It has no rock, and no soil. Apparently it started as a large sand bank, which grew some grasses that decomposed enough to allow some larger plants to grow. Then there were layers of sand, followed by more layers of plant material. This went on over and over until it became a large island of over 100 kms long and 20 kms wi...