Watch The Ghan: Australia's Greatest Train Journey (2018) : Full Movie Online Free The Ghan is an innovative three-hour documentary that takes the viewer on an immersive, visually stunning journey on Australia's most iconic passenger train. In Australia's first 'Slow TV' documentary, The Ghan doesn't just travel through the heart of Australia, from Adelaide to Darwin, it explores the part the Ghan played in the foundation of modern multicultural Australia.