If anyone is interested in seeing big cats, the Vredenheim winery at Stellenbosch has a big cat park. We had lunch at the Hudson restaurant there and at 3pm they fed the cats and gave people a tour/talk as they did it. They had lions, tigers, a cheetah and a leopard. They had beautiful gardens, very relaxing, a lot of people were there with their picnic rugs taking time out under the trees. Would have loved to do the same.
if you're going with kids the Butteryfly world also at Stellenbosch also had plenty of animals and an area specially for kids to play and do sand art and craft.
we also went to the Cape Town ostrich ranch and got to feed them hold a baby ostrich and sit on an adult one. DD really liked seeing the ostriches. They also had a play area for kids and a cafe and a couple of gift shops.