Do not bring any kind of citrus fruits into Addo Elephant Game Park if it can be helped. Oranges, pineapples, clementines, naartjies etc. The park has decent fences around the it, but in times past, it didn’t, and animals used to get out of the park and into the citrus fruit trees and eat whatever they could find.
Naturally this enraged the local farmers and many elephants were shot, maimed and killed because of it. Animals have excellent memories generally, especially elephants, and they associate the smell of citrus fruits, with that of pain and suffering. This might make them restless and even angry, so best to play it safe and not bring them into the park.