There's a small island at the far southern end of the reef surrounding the ESE part of Necker Island. It's really just a sand spit collected on the reef. Inexplicably, Sir Richard has erected three FAKE coconut palm trees on the island. (I think it's a metaphor!) One can see this 'island' in some Virgin adverts.

You cannot approach it from the south, due to the reef, only from inside the reef, close to Necker.

Just one of 'Nature's (Dirty) Little Secrets'!