This was the scary moment a couple of kayakers off the South African coast were encircled by a huge four-metre-long great white shark.

Footage shows the beast lurking closely below the kayaks as the filmer puts their camera beneath the surface to capture the encounter.

The filmer told Newsflare: "A friend and I were paddling when suddenly a four-metre great white shark started following us, it then circled the kayaks for a couple of minutes then swam off!"