With shark populations collapsing worldwide and local wobbegong numbers in decline, the juveniles are part of a research program investigating whether sharks bred in captivity can thrive in the wild.A crowd gathered on the beach, waiting for the sharks, including camera crews.
The joint venture between Sydney Aquarium and Macquarie University, called Project Wobbegong, is already a success, with 12 out of 17 individuals released setting up home in the area or returning on a regular basis.
And divers: