Situated in the Cairns metropolis of Queensland, this Australian site is a chief attraction for tourists. The Reef spreads from the east shore of Australia to the coastal waters of Papua, New Guinea. The place is purely famous for being the biggest and the largest formation on earth built by coral. Accredited as a world heritage site in 1961, the exciting coral isle, with an area of about 300,000 square kilometers is bestowed to be one of the wonders of the world. The Great Barrier Reef comprises an unmatched diversity of flora and fauna that comprise great turtles, birds and mollusk.