On the same trip we came across this labyrinth. It overlooks the indigenous forests of Hogsback and you encounter some interesting plants en route to the centre. Once there, I found what I presume is some sort of aloe (see pic).. Who knows what this plant is?
The labyrinth is next to accommodation offered by the Edge (http://www.theedge-hogsback.co.za/). A great little place with a cool restaurant and private cottages set into the mountain-side, surrounded by bush. We even saw a baboon in the half hour we were there.