The fruits of the Cape Fig are borne on branchlets emerging from the main trunk (see also previous photo), a feature termed cauliflory and which is fairly common among tropical rainforest trees.
It is probably, in this case, an adaption to dispersal of the seeds by climbing mammals such as rodents.
As with all wild figs, the developing fruits are fertilised by wasps. The fruits of Cape Fig are almost the size of those of cultivated figs.