R posted again! Dig!
Here is what stands out in that island to me… Some things to think about when looking at these photos… It will take a LOOOOOONG time to regrow trees/brush in rough conditions. This island is probably "rough conditions" as is all such areas. think INCHES/year. If you see heavy foliage in an area that did not have heavy foliage a year ago it very likely is photoshoped in there.
Same thing goes with any form of Coral. Now I am not a marine guy but I know Coral will take a tremendously long time to form. This island is a coral atoll as you can tell from its ring shape. This means that any place where coral or seabed has grown natural looking coral between photos has been 'shopped. It just won't grow that fast. There is gobs of obvious manipulation here so enjoy digging!