Australian Unesco cards

In the next days i'll receive lots of new Unesco cards!!! I'm looking foward to get them. But for now i've these two from Australia, both new sites in my collection and sent by Sharon.

 Lake Mungo is a dry lake in south-western New South Wales, Australia. It is located about 760 km due west of Sydney and 90 km north-east of Mildura. The lake is the central feature of Mungo National Park, and is one of seventeen lakes in the World Heritage listed Willandra Lakes Region. Many important archaeological findings have been made at the lake, most significantly the discovery of the remains of Mungo Man, the oldest human remains found in Australia, and Mungo Lady, the oldest human remains in the world to be ritually cremated. - in: wikipedia

Naracoorte Caves is a national park in the south-east of South Australia. It was officially recognised in 1994 for its extensive fossil record when the site was inscribed on the World Heritage List, along with Riversleigh. The park preserves 6 km² of remnant vegetation, with 26 caves contained within the 3.05 km² World Heritage Area.

The limestone of the area was formed from coral and marine creatures 200 million years ago and again 20 million years ago when the land was below sea level. Ground water since then has dissolved and eroded some of the limestone, creating the caves. The caves, such as the Victoria Fossil Cave and Blanche Cave, are often not far below ground, and holes open up creating traps for the unwary. This is the source of the remarkable collection of fossils. Mammals and other land creatures have fallen into open caves and been unable to escape. The fossil record has been preserved in strata formed from eroded topsoil washed and blown in. In some places, the fossil-bearing silt is up to 20 metres thick. Some of these areas are being preserved for future research when better methods of dating and reconstructing fossil records may have been found. These fossil traps are especially significant for tracing Australian megafauna. - in: wikipedia