A scary video has emerged of a great white shark showcasing its powerful jaw in front of terrified cage divers in South Africa.

The footage, shot in 2015, shows the shark trying to bite a bait next to the cage as the divers can be heard screaming on top of their lungs.

"After a fairly uneventful day, we went in the cage one last time in hope of getting up close and personal with these magnificent Great White Sharks," the filmer wrote online.

"I think it's safe to say we got more than we bargained for!"