If I can add my 5c worth:
P1: A favourite piece of road - B4 heading down towards Lüderitz, from Aus (after Klein Aus Vista). Yes it is tar - but, as far as I know is only road to
Lüderitz, and one knows one is heading for the sea)!!
P2: Fish River canyon from viewpoint- everyone has one of these.
P3: Graaf Reinett from the Valley of Desolation