Bald Rock's new signage

I have still to visit Tenterfield's Bald Rock. It's a spectacular site; 1,300 metres above sea level, Bald Rock’s water-streaked dome is 500 metres wide and 750 metres in length, and is the largest granite monolith in Australia.
 

A 3.2km loop walk takes you the summit. It can be a slightly treacherous walk; wet granite gets slippery. Now I see from the Tenterfield Times that the National Parks and Wildlife Service has installed new signage to give visitors a clearer picture of potential hazards. That strikes me as a sensible idea. 

I wondered how they might do it. You can see from the photo that it's quite rugged. Apparently they used motorised wheelbarrows! Time for me to visit.