Great Harbor is great if you can pick up a mooring, but anchoring is a challenge even for experienced sailors. The bottom is hard with a field of low lying coral heads. When anchoring, the chain will often hand up on the coral heads making it appear as though the anchor is set, only to start dragging as the boat swings in the wind-leads to a multitude of close encounters followed by exchanges of captains pointing the finger to each other as to who is dragging. For my crew, no ball in Great Harbor means a trip elsewhere