The name 'Kakadu' comes from an aboriginal floodplain language called Gagudju which was one of the languages spoken in the north of the park at the beginning of the twentieth century. Gagudju is no longer regularly spoken but descendants of this language group are still living in Kakadu. Kakadu National Park and Arnhem Land comprise more than 110,000 square kilometres in the north-east corner of the Northern Territory. The landscapes of are diverse and set the scene for outback adventure travel, aboriginal culture and nature activities.Kakadu National Park is the largest national park in Australia. It contains one of the highest concentrated areas of aboriginal rock art sites in the world; the most famous examples are at Nourlangie Rock and Ubirr. The secret to discovering Kakadu is taking your time. You'll find stories, secrets and sights never imagined. It is impossible to appreciate the full breadth and beauty of the park in a fleeting visit – plan to stay at least three to five days. If you can afford the time, spend a week or more.Nature and wildlife abound in this area, which is known for its level of biodiversity.Wholly aboriginal owned land, Arnhem Land is known for its strong aboriginal culture, towering escarpments, wild coastline, savannah woodlands, lush wetlands and prolific wildlife.Closer to Darwin is the Mary River region. This area is renowned for its wetlands and wildlife, and is home to millions of birds, saltwater crocodiles and fish, including the mighty barramundi, which makes it a fishing hot spot.The park was established in 1981. It is governed by Environment Australia / Parks Australia and Aboriginal traditional land owners (the Gun-djeihmi, Kunwinjku, Krakeourtinnie and Jawoyn peoples). The park has recently been accepted as a World-Heritage listing. http://wikitravel.org/en/Kakadu National Park