At Mungo, in far south-western NSW, you’ll find undulating sandplains, ancient lakebeds, spectacular dunes and abundant fossils.

Mungo National Park and the wider Willandra Lakes Region World Heritage Area has a series of ancient lakes that once supported lush ecosystem.

Today the lake floors are dry saltbush plains; on their western sides they have crescent-moon shaped dunes known as lunettes, which were formed by prevailing winds when the lakes were full.

Over millennia, wind and water carve the lunettes – such as the Walls of China, pictured  below into alien-looking formations.

Rain slowly washes away sand and soil, creating channels and ridges.

Photo credit: Michael Amendolia

via Mungo National Park – Australian Geographic.