The Southern Africa Tourism Services Association (SATSA) has issued a guide and tool for Evaluating Captive Wildlife Attractions Activities. A copy of the indepth document can be found here.
From SATSA:
The study conveys findings and recommendations around:
· Performing animals (all types of animals, including elephants, predators, primates, cetaceans, birds, reptiles etc. trained to perform in a public show or display)
· Tactile interactions with infant wild animals (e.g. cub petting)
· Tactile interactions with predators or cetaceans (any interaction with land predators or aquatic mammals)
· Walking with predators or elephants
· Riding of animals (including sitting on elephants, ostriches etc.
As the Study states, this is a complex issue. But, through knowledge you can practice Sustainable, Ethical Wildlife Tourism.