Travel Oz features the Great Barrier Reef...underwater and above the waves.
With global warming, the magnificent corals and bountiful sea creatures are under a very real threat.
On Heron Island, with its corals, giant manta rays, and beautiful turtles, researchers warn that with rising sea levels over the next century this island could disappear.
We’ll follow researchers as they study coral growth on the reef,
track marine biologists as they release turtle hatchlings, and sail with the acknowledged master mariner of the reef as he shows us coral cays with a legendary history.
Travel Oz is presented by veteran documentary maker GREG GRAINGER.