More than 60 sharks have been spotted near popular swimming spots on the NSW coast in the past two days.
Swimmers were kept out of the water at Jervis Bay when more than 30 sharks, believed to be bronze whalers, were seen in the shallows.
The sharks were estimated to be between 2.5 and 3.5 metres long.
A surfer also reported a shark sighting at Port Kembla Beach on Tuesday afternoon.
When the Aerial Patrol responded minutes later it spotted a hammerhead shark in the beach area, and another five sharks nearby.
Windang Beach was closed while beachgoers waited for a number of sharks to move offshore, while five hammerheads were also spotted at Warilla.
The Aerial Patrol is providing daily beach surveillance until the end of January.