Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Mount Etna Caves is a national park in Queensland, Australia, 544 km northwest of Brisbane. The parks caves are the roosting site for more than 80 percent of Australia's breeding population of Little Bent-wing Bats. It is also one of the few places in Australia supporting a colony of the endangered Ghost Bat. Queensland is a state of Australia that occupies the north-eastern section of the mainland continent. It is bordered by the Northern Territory to the west, South Australia to the south-west and New South Wales to the south. To the east, Queensland is bordered by the Coral Sea and Pacific Ocean. The state is Australia's second largest by area, following Western Australia, and the country's third most populous after New South Wales and Victoria.