If you have ever heard anyone saying you have to see it to believe it then this attraction is exactly what it is. The Umpherston Sinkhole is a breathtaking creation which has hanging vines, flowers, trees and other floral and fauna that make it seem like there is a much more beautiful world down under. You might also come across some intrigued possums that are residents of the area. The area was built on limestone is the cause for the sinkhole which took its shape over many years.