aloes/euphorbias?

[PlantExplorer]

Hello, I'm going to be visiting this part of SA in August - basically driving down from the Karoo and leaving from PE - and have a particular interest in aloes (or large succulents in general, so that would include the euphorbias too!). I'll probably have 4-5 days between some combination of Camdeboo and Addo along with (if I'm allowed to ask about other kinds of parks!) Swartberg, Gamkaberg, and Baviaanskloof reserves. Would any of these be especially worth visiting in terms of vegetation, accessible on day hikes? Thanks! Darren