The Cape Hauy Track forms part of the multi-day Three Capes Track, and takes in a variety of coastal scenery, including sheer sided cliffs on Cape Hauy itself. It’s roughly a 90 minute drive from Hobart; the last section is a dirt road to the picturesque Fortescue Bay, where they have a camp ground and facilities. The first part of the walk is through forest, which then opens up to heath vegetation and views of the surrounding cliffs, the most precipitous of which are at the turnaround point of the walk.
You walk out to the Cape and back again on a well formed and obvious track; about 9 kilometres return over undulating terrain. Here are track notes and maps from Trail Hiking Australia and Tas Trails. Our track notes in Day Walks Tasmania included an additional leg to Mt Fortescue and back, but this is no longer allowed as they now force people to walk the Three Capes Track in just one direction, so as to limit the spread of disease into wilderness areas. (It may also be because people pay to do the Three Capes Track).