In 1997, a Western Australian coal mine closed; its 103-hectare void filled with about 30 billion litres of water and opened in 2020 as Lake Kepwari
Lake Kepwari (Image Credit: Department of Biodiversity, Conservations and Attractions/ Western Australia) What was once a deep hole left behind by coal mining is now a destination for swimming, boating, camping and water sports. Lake Kepwari, near Collie in Western Australia, began as the Western 5B mine void at a former open-cut coal operation. After…