Naracoorte Caves is a complex of limestone caves located in the Naracoorte Range in South Australia. It is known for its spectacular display of fossils, with over 100,000 fossil specimens from the past 500,000 years. The caves are formed from limestone that was deposited around 200 million years ago, and they contain a variety of formations including stalactites, stalagmites, helictites, and columns.

The caves have been inhabited by indigenous people for thousands of years, and evidence of their presence can be seen in the form of rock art and stone tools. The first European to explore the caves was William Blandowski in 1859, and they were opened to the public in 1960.

Today, the Naracoorte Caves are a popular tourist destination and a World Heritage site. Visitors can take guided tours of several of the caves, including the Victoria Fossil Cave, which contains some of the best-preserved fossil deposits in the world. The caves are also home to a number of rare and endangered species, including the southern bent-wing bat, which roosts in the caves during the summer months.