We arranged for a driver which worked out great since we would have been incapable of driving ourselves after the first stop. Needles to say, none of the vineyards were stingy with their samples. I think we were drunk by 9 am, but hey, we were on vacation and going to have a good time if it killed us. We visited 5 wineries and a place which specialized in port. We also took in some cheese tasting and managed to squeeze in some chocolate tasting as well.
You can't go to Cape Town and not visit the winelands. There are so many phenomonal vineyards within a short drive.