If you get the 'old skool' 1997 "The Black Guide" it will help.
If visiting the crag just for a day in the Boys Toupee Area then the following might interest you. Park your car near the helipad (next to the turn off into Saddle Camp) and follow a disused, but flat, easy road into the right hand end of the cliff. The Boys Toupee Area and In Search Of Water will be just up to your left when you reach the cliff. About 8 minutes walking time.
If you keep following the cliff line you will be at Burrunj North. Climbing first happened in this area over 40 years but the "modern" development a mere 20 years ago