"The water was full of blood and we could see the dorsal fin of the shark slashing through the water.”

Sydney actress Marcia Hathaway was fatally mauled in a terrifying shark attack at Middle Harbour in 1963.

It took 45 minutes for the Mosman teen to reel in a massive 2.8-metre bull shark in Sydney Harbour. See the video!

Sydney Harbour is the jewel in Australia's crown, and owning a lower north shore water view is a prized commodity.

With oversized blocks, stately mansions and sweeping views, Beauty Point is in a coveted pocket of Mosman.

Police are encouraging lower north shore residents to look out for their mates and loved ones this Australia Day long weekend.