Paul Marshallsea, 62, was enjoying a barbecue with his family and friends when he heard cries of "shark".
He sprinted to the shoreline and found the two-metre long dusky shark in shallow water close to where toddlers were paddling.
The father-of-three grabbed the shark by the tail and dragged it out to deeper water. He narrowly avoided being bitten in the process when the shark lunged at his leg.
