Livies should produce decent results at winkelspruit.
You can also try sliding something like a whole bonnie if you want to target sharks.
According to John Wallace- the author of a book on sharks in SA, winkelspruit is the beach that has had the most recorded shark encounters of all time.
Shad should also be a species that will be around - depending on the water conditions. ( brown water = not good for shad).
There is a great spot for shad at Hibberdene, just a few KM from Winkelspriut.
If you are going South , look for the last cafe right next to the road.About 250 meters further south you will find a footpath going down to the beach. At the bottom of this path is a great spot.
Good luck ang get yourself a big one!