Lake Mungo lunette, 2020

Lake Mungo is located in the Willandra Lakes area, in New South Wales. 150,000 years ago, the Willandra Lakes formed as low-lying basins filled with water from the mountains to the east. The levels of the lakes fluctuated over the next 100,000 years depending on the warming or cooling of the climate. Today the lake is dry. Lunettes are eroded dunes (often in the shape of a crescent) that show layers of silt and sand deposited over tens of thousands of years.