The World in Images


Great Barrier Reef | Hook and Hardy Reefs


View towards southeast. The Great Barrier Reef is the most extensive coral reef system worldwide, with almost 3000 individual reefs on a length of 2300 kilometres and a surface area of almost 350000 square kilometres. It was declared a UNESCO World Heritage in 1981. This image shows the Hook Reef in the foreground and the Hardy Reef in the background, separated by a deep tidal channel. The permanent structures in the left portion of the image facilitate visitors to closely observe the reef ecosystem.

View on OpenStreetMap
on Monday 13 August 2012 by Martin Mergili
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