Hal Hal is a fisherman's expression meaning 'restless sea' and it’s true the sea is almost constantly choppy here. Two ergs push up from the plateau to about 3m, the plateau has 16m depth, whilst on the outside it drops to a wide ledge at 22-24m. If the weather allows us to make a dive here, you will find the most vibrant, colourful, lively reef you have ever seen. The fish don’t sleep here. The reef is a blaze of soft corals and gorgonians.