There are two hotel moorings outside the reefs and four inside. If the reefs are covered, you could be fooled into using an outer buoy as a landfall indicator, and head straight for one of the inners. That will lead to a bump, and could be dangerous if foredeck crew is tumbled overboard by the shock.

You can (just) see one of the outer buoys in the distance and also what lies beneath...
The CCC perches don't add much, as the landward one is missing and the channel seems to be at the far side of the big reef from the remaining one.

I believe the placement of the moorings could be better - ie arranged to lead you through the gap rather than onto the rocks.
We saw a boat hit the small reef on the high tide before these pics were taken.