You are looking at a “succulent” which is highly prized by gardeners, worldwide.
Very probably, this wild, uncultivated one is an example of Cotyledon orbiculata, commonly known as “pig’s ear”.
Discover more about this plant, here. (but be aware that its natural range is not restricted to South Africa – it extends through Namibia, and into southern Angola)
All photos ©️ Doug Spencer – this one taken from dry bed of the Hoarusib River, several kilometres inland from the Atlantic Ocean’s “Skeleton Coast” shoreline, at 12.33 pm on 14 November 2022.