The Mount Bushwalker Track provides really wide open views of many significant features in the Budawangs Mountain Range, and all for relatively modest effort. There’s also a short side trip worth taking into an atmospheric place called The Gaolhouse, a pocket of rainforest in the crack created by a section of rock falling away from the main cliff face.
It’s a pretty straightforward 7km walk: details on the NSW NPWS website, and more detailed track notes in either Take a Walk in Southern NSW & the ACT or Best Bush, Coast and Village Walks of The Shoalhaven. The latter book has notes to the Gaol House, a short side trip marked by a bent yellow arrow on a rock near the second of two rocky creek crossings. This track is not so distinct but you’ll know when you’ve arrived.