Great Barrier Reef
Monty Halls explores Australia's Great Barrier Reef, one of the natural wonders of the world and the largest living structure on our planet.
3. Reef and Beyond
8.0Jan 15, 2012 · 60 min
The Great Barrier Reef is vitally linked to the rest of the planet in many ways. Creatures travel for thousands of miles to visit in spectacular numbers, including tiger sharks, great whales, seabirds and the largest green turtle gathering on the planet.