Limmen National Park, announced in 2012, is the second largest in Australia covering 10,000 square kilometres (3,900 sq mi) in the Northern Territory. Located about 600km south-east of Darwin on the Gulf of Carpentaria, the park incorporates wetlands, sandstone structures and numerous rivers.[2][3] A major attraction in the park are the 'Lost Cities'—sandstone rock formations resembling tall apartment blocks.[4]