Reef wall. A gentle current took us along a coral wall with a sheer drop off in places. out of the blue came a Humphead Wrasse which almost glided right up to me. Saw Seargeant Majors, a Birdfish, Blue and Gold Fusiliers, Parrotfish and a million and one other fish which I couldn't recognise from the charts. Nicest parts of the dive were when I hung upside down looking at tiny fish or looked up and back at the looming wall. Was too over-buoyant at the end of the dive, my tank being lighter with less air in it.