The five-metre great white, nicknamed Bruce, and a three-and-a-half metre shark that lunched on a dolphin last week, have not been seen since Friday.
A spokesperson for Heliservices Newcastle said crews will take to the air today to try to spot the sharks, before a decision is made to reopen the beaches.
A dolphin with a chunk of its body missing after an attack by an eleven-foot shark. The attack occurred just 60 yards from shore and came as the council admitted that there was not merely one shark – “the biggest we’ve ever had” – lurking around the city’s beaches, but several of different species.
The attack on the dolphin was by a tiger shark, which took a chunk from the dolphin’s back and then lunged forward for a second bite to take a chunk out of its tale. The shark then reportedly hung back and waited for the dolphin to die before feeding on it.
But the main concern, which led to the closure of the city’s seven beaches, has been the presence of a 15-foot, 1.7-ton great white shark.
On Friday a 17-year-old boy was bitten on the hand by a 1.5m shark at Mollymook Beach, about three and a half hours south of Sydney.
Sam Smith was flown to a Sydney hospital with lacerations to his hand sustained after he tried to film the shark while spear-fishing.