I stepped back in time on the Overland Track, a strange and stunning bush walk on the often overlooked island of Tasmania. The trek is roughly 40 miles long and packs a lot of scenic punch, with terrain ranging from sheer mountains, temperate rainforests, wild rivers and alpine plains. Magnificent, prehistoric dolerite cliffs soar into view from the start. Tasmania's relative isolation has been kind to the landscape, with only 60 hikers allowed in per day during peak season. If you've ever imagined a world where dinosaurs roamed, look no further.