Monty Hall embarks on a 2000-kilometer journey across Australia's Great Barrier Reef, exploring the world's largest living structure.
Aired: Jan 1, 2012The next episode takes us to the majestic Great Barrier Reef, where we explor...

Australia's Great Barrier Reef is a remarkable natural wonder, spanning 2000 kilometers from the Coral Sea to its innermost reaches, and is the largest living structure on Earth.
Monty Hall embarks on a 2000-kilometer journey across Australia's Great Barrier Reef, exploring the world's largest living structure.
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