Hi Nantes
There are a few places on the forum where you can find way points for Richards Bay, if you want to fish there. At Sodwana the most popular places is Diepgat to the south Witsand, Klein Witsand, in front of the light house to name a few. If you have a chart plotter you can check the contours and fish the 15m to 40m lines slow trolling with dead baits for various species.
Hope this can help