Although South Africa has a nice heraldic tradition, its vexillology, specifically in relation to provincial and municipal flags, is still incipient and, in many cases, disappointing.
Look at the flag of Cape Town, one of the few you'll find:
This flag depicts a white stylized Table Mountain (a tourist attraction of the town), some kind of rainbow connected to South African national flag, and a lot of things improper to a flag.
I still prefer the design used before 1997:
This flag depicts the newer the old coat of arms of the city (it was abandoned when the flag changed, but none design was granted since then) on a blue background. The coat of arms consists in a yellow shield, with a black anchor (in reference to the fact that Cape Town is one of most historically important ports in the world, because of its strategic position on the Cape of Good Hope) and an inescutcheon with the arms of Jan van Riebeeck, a Dutch administrator of the area, consisting on three golden annulets on a red field.
My proposal takes the most substantial symbolism but rearranges the elements in a more pleasing design:
The three annulets are in a different disposition but, actually, can be blazoned as the same. Although black anchor in red can ignore the rule of tincture in many traditions (including the South African), the contrast between these colors isn't considered an issue (look, for example, to Albanian flag). This flag holds a harmony between the vertical and horizontal axes, slightly resembling a cross arrangement.
Your comment is welcome. Feel free to comment.
Next week, the Brazil capital series appear again.