Great Barrier Reef Tourism. Queensland, Australia. The Great Barrier Reef is one of the world's great natural wonders. It is the largest reef in the world and consists of nearly 3000 individual reefs, 880 islands and hundreds and thousands of different types of plant, bird and marine life. Swimming with the fish and admiring the colours of the coral is a must for any holiday to the Great Barrier Reef. Outer reef scuba diving and island day trips are some of the more common pastimes on the reef along with scenic flights and rainforest tours to Kuranda and the Daintree Rainforest. Stretching along the Queensland coast for over 3000km, the Great Barrier Reef can be experienced on a holiday to a variety of popular Queensland destinations including Cairns, Cape Tribulation, Port Douglas, Cape York, Cooktown and Palm Cove. Offering an incredibly unique and spectacular natural environment, the Great Barrier Reef is not only a popular holiday destination for Australians but drawn thousands of visitors from all over the world year after year.