Chilling aerial footage has caught the moment a shark "came out of the shallows" as a man obliviously swam just metres away.
Ocean photographer Lewis spotted the encounter at Maroubra beach, Sydney, Australia, on Tuesday, at around 6.30pm, when they are more likely to come out to feed in the shallows.
He said it was "amazing" watching the grey nurse shark as it "went about its business".
In footage he shared to his Instagram the swimmer is captured having a paddle in the waist-deep water as the two metre shark emerges from the depths.
Without even realising it he comes hair-raisingly close to the predator, who swims away.
Lewis told Yahoo News : "It was good to watch the interaction. Quite amazing to be honest.”
“I have seen all species of sharks come into Maroubra Bay. All species show different behaviours.
“It’s amazing how busy the oceans are in Sydney. I have seen some funny reactions from surfers and swimmers.”
Nurse sharks, which are an endangered species, are fairly harmless to humans, and rarely attack.
It comes as a British dad was killed by a great white shark as he swam in the sea off Western Australia, as his wife and kids tragically watched on from the shore.
Paul Millachip, 57, was attacked by the shark, with witnesses claiming it was around 14ft long, at around 10am local time on Saturday.
A large shark was reported to have been seen in the water before Mr Millachip was killed, according to 9News.
His wife, who asked not to be named, paid tribute to her husband and described him as a "wonderful man" and a "wonderful father" to the couple's two adult children, The Sun reported.
Mrs Millachip added that the attack off Port Beach in Fremantle “came out of the blue”, according to a report by news.com.au.
The family were together at the time of the attack, watching on as Mr Millachip swam at the popular beach as he often liked to do.
Mrs Millachip said a group of teenage boys witnessed the attack and rushed into the sea to warn other swimmers to move away from the danger.
