I found one of the biggest Mozambique Spitting Cobras Naja mossambica I've ever seen. It gave me my second experience of venom in the eyes.
Giant plated lizard. Gerrhosaurus validus
Oogpisters (eye shooter) Anthia maxillosa. Its a nasty predatory bug that has the ability to spit/squirt formic acid. It also has a very painful bite. I still want to see the invert that can kill one. When I was a boy we used to have invert fights. You would pick/ catch a bug and square it off against a mate's. The winner usually won marbles or a spinning top. These bugs were illegal according to the rules unless each contestant had one. I've seen them kill scorpions,solifugids and even lizards.
Various wolf spiders.
Velvet ants also enjoy those rocks
Nightjar nests are also fairly common there. For info, a nightjar is a groundbird with absolutely incredible camouflage.
Of the larger animals that go there:
I saw Klipspringers (rock jumper) Oreotragus oreotragus. A very small, agile antelope. Its hooves look like a ballerina standing on her toes.
Duikers (diver) Sylvicapra grimmia . Their name given to them because of their habit to dive into the bushes at great speed when they sense danger.
Large leopard male Panthera pardus, Tsotsi was his name.