Matt, G'day. Sorry Mate, I hope that I'm not too late with my reply, after receiving your note. I only saw your note this evening (10th April).
This is how we traversed Byangee Walls, on a Canberra Bushwalking Club jaunt. We kept to the 'blade' of Pickering Point as often as possible. Basically, consider the climb as stepping-up onto the next terrace with a bit of simple zig-zagging, then onto the next, and then onto the next terrace. Basically, head-up the way that looks right.
From the river we went straight up the spur to be right below Pickering Point. It was evident how to continue, until we reached the first obstacle, a narrow chute (only about 4-5 metres chimneying, we used rope to haul the packs) to the next level (terrace). The chute wasn't too difficult. Again, we kept heading up the sharp end of the point, until we reached a wall (about 3 metres high). One bloke climbed it and with his help we then helped each other make it. Before we reached the top, not far from the top, we headed around the right again, and then not too far along we ascended and made the plateau. One of the aspects of the Budawangs is, when anyone goes anywhere, it shows. The use-ware on the rocks describes the route. The track across the bute is evident and almost flat. At the pinch, the narrows, it is only about 6 metres across and spectacular.
The descent was almost right off the point above Castle Gap. Again we came back on ourselves, on the right, but not too far back. After reaching the next level, only dropping down a few metres from the summit, we then headed around to the left until we came to the cavern, keep going left, you can't miss it. It is most evident. We descended in the cavern, it was wet and slippery then, and we shimmied down (inside the mountain, just crazy stuff) on our backsides until the rock face ended. Then we headed back around to the right, to above Castle Gap, and simply scrambled down to the saddle. Or it felt simple. The day before we climbed Byangee walls, we had climbed the Castle, walked through Monolith, climbed and then descended over the sharp end of Shrouded Gods to the river. This was one of the most enjoyable walks that I've done. If not the most enjoyable, of all time.
Have a great walk Mate.
Nick Croft at the end of the descent .. reaching Castle Gap.
I'll find some more shots.
~Warren.