The land of "no worries" may be home to the happiest people on earth--and why shouldn't they be? Australia, New Zealand, Tahiti, Fiji and the south pacific's other islands have it all: cosmopolitan cities like Sydney, Auckland, called the "city of sails" for its spectacular harbor; the vast Australian Outback and its dramatic icon, Ayers Rock; many of the world's best beaches; and the most extensive collection of coral on earth, otherwise known as the Great Barrier Reef.