Is this the biggest Great White ever? Swimmers are evacuated from a popular diving spot just 100metres from the beach after a huge SEVEN metre shark is spotted
A seven-metre great white shark has been spotted off Adelaide's coast by a helicopter patrol.
The shark was seen 100metres offshore at the Marino Rocks on Sunday afternoon, a Shark Alerts South Australia Facebook post says.
Nearby Nippers events were cancelled and swimmers evacuated from the water.
'It's the biggest I've ever seen as a crew member in the Westpac chopper. We put it down as 7m the photo really doesn't do it justice,' an unnamed crew member wrote.
It is possible for Great White Sharks to grow bigger than six-metres – the largest Great White ever verified, shark expert Andrew Fox said
It is more likely though that the supposed seven-metre shark seen on Sunday afternoon was a victim of what he calls the 'exaggeration effect,' he said.
'Honestly, a five-metre shark is an absolute giant and it looks twice as big – you can only imagine what a six-metre shark does to people's perceptions.'
The person who observed the Great White near Adelaide is quite experienced, which has given the sighting some credibility, but you can only verify its actual length when it's measured, Mr Fox said.
The pictures posted caused a stir on social media, with some swearing never to step foot in the ocean again, and others arguing the great white was unlikely to be that large and labelling the sighting a 'fisherman's tale'.
'I wanna swear in terror but this is a family page so I won't and I bite my tongue,' one kayaker wrote.
'Bugger that, they can have the water, I will stay on shore,' one frightened man posted.