Largest atoll structure

Largest atoll structure
Who
Great Chagos Bank
What
12642 square kilometre(s)
When
01 January 0001
The Great Chagos Bank in the Indian Ocean covers an area of around 12,642 km² (4,881 miles²). It has 7 named small islands on its rim, with a combined area of just 4.5 km² (1.7 miles²).