Great Barrier Reef | Hardy Reef
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.
- aerial view, marine processes, reef
- Monday 13 August 2012 by Martin Mergili in Australia and Oceania / Australia | Queensland (2656 visits)