The Arnhem Highway runs east from the Stuart Highway, 2.5 kilometres west of Humpty Doo, to Jabiru. It is 220 kilometres long and a 2.40 hour drive. The highway is sealed and is open for most of the year, but it would be a good idea to check road conditions during the wet season which is from December to April. The Arnhem Highway is part of the Nature’s Way Tourist Drive, which takes in Kakadu National Park