Watch as corals across the outer reef synchronise their spawn release, while scientists capture the spawn to help regenerate the reef before it's too late. The reef comes alive in a breeding bonanza of fish, birds & turtles.

Watch as corals across the outer reef synchronise their spawn release, while scientists capture the spawn to help regenerate the reef before it's too late. The reef comes alive in a breeding bonanza of fish, birds & turtles.

In a live event from the Great Barrier Reef, witness one of the world's greatest natural spectacles - the annual phenomenon of the majestic mass coral spawn. Hosted by Hamish Macdonald, Brooke Satchwell and Dr Jordan Nguyen.

In a live event from the Great Barrier Reef, witness one of the world's greatest natural spectacles - the annual phenomenon of the majestic mass coral spawn. Hosted by Hamish Macdonald, Brooke Satchwell and Dr Jordan Nguyen.