Yep - I've been out that way with Tom Williams a few times. Tom has done a lot of long routes out there. Mostly with Ian Brown. One, near Kanangra Falls (called the White Tower of something) was written up in "Rock" many years ago. The rock is surprisingly good, but there can be loose blocks and its not uncommon to use the odd orchid or two as handholds. Tom has names for all the climbs but I don't know if he has written them up anywhere. Some would better be described as "scrambles"