Great Barrier Reef

1. Attractions

1.1. 1,500 species of fish

1.2. 4,000 species of molluscs

1.3. 400 species of coral

1.4. 215 species of birds

1.5. 16 species of sea snakes

1.6. 6 species of sea turtles

1.7. Scuba diving

1.8. Snorkeling

2. Geography

2.1. World's largest coral reef

2.2. "the only living organic collective visible from Earth's orbit"

2.2.1. Australian government

2.3. 3,000 reefs

2.4. 600 islands

2.5. 1,250 along Australia's northeast coast

2.6. Larger than the Great Wall of China

2.7. One of the seven wonders of the natural world

3. History

3.1. 500,000 years old

3.2. Great Barrier Reef was declared World Heritage on 26th October 1981

3.3. The reef was named by Matthew Flinders in 1802

3.4. Corals are some of the world’s oldest forms of animal life-about five hundred years old.

3.5. The reef contains thirty shipwreck sites of historical significance

3.6. Some regions of the reef are considered to be some eighteen million years old.