The Great Barrier Reef is set to be the subject of a new Sir David Attenborough documentary designed to attract more international visitors to the World Heritage listed area. The legendary English broadcaster and naturalist filmed the documentary on site last year, 60 years after he first visited Earth's biggest coral reef. The three-part series will be aired early next year to an audience of around one billion people in 130 countries, looking at the reef's past, present and future. Tourism Australia provided $1.5 million of funds towards the production costs. Research has shown aquatic experiences to be among the greatest drivers of international visitor demand, specifically to Australia. Currently, the Great Barrier Reef attracts more than 1.9 million visitors a year, contributing $5.6 billion to the economy and supporting 69,000 jobs. Click here to learn more.