HI
Do you have access to a boat? If you go to the Infanta side there is very nice diving down the wall or around the point at "Drie Gaatjies". Means that you either have to drive to Infanta or take a boat through the mouth.
The alternative is to go to the rock pools area at low tide and access from there and dive the deeper pools. If you are up for a walk - 3.5Kms - then you can go towards Moodie se put where there are deep gullies that lead into the surf and deeper rock pools.
There is a nice big pool just off the parking area at the cement blocks which leads into the ocean!
Enjoy!