And while tourists from near and far head there in their droves, one particular guest has gone viral.
A Chacma Baboon stopped in for lunch recently, causing guests to look on in bewilderment. He first tucked into a spagbowl, before proceeding to finish off the garlic bread. The Daily Mail quotes Tanya May, one of the visitors who witnesses the fracas, "The baboon looked like he was perfectly at home sitting at the dinner table and showed no signs of any nervousness."
She even jokes that it looked as if he had booked for lunch.
Jean Naudé, CEO at Groot Constantia however confirmed that "despite intensive efforts to keep baboons out of the public areas at Groot Constantia, this baboon decided that the food at Jonkershuis is so good he was willing to brave the specially erected baboon fencing and baboon deterrent measures to get a taste!"
"We take every possible measure to keep baboons out of Groot Constantia and spent over R1 million on fencing plus we employ baboon spotters whose job it is to drive the baboons away. However, on occasions, it does happen that one of these clever animals finds their way around our set up.
"We can't blame them - a visit to Groot Constantia is always a treat!"