Name: The name "Livingstone Reef" is derived from the name of the diver who found the pinnacle by accident when diving the north pinnacle of Castor Reef. The reef was known to exist but had not been reported before as a dive site. Depth: Maximum depth is about 23 m on the sand and the top of the pinnacle is about 14 m. There is another pinnacle to the east which comes up to about 15 or 16 m. Marine life: The reef cover is typical for this area and depth range. There are fairly large numbers of gorgonian sea fans, anemones, soft corals, arborescent hydroids, bryozoans, feather stars and sea cucumbers. Fish include Bank Steenbras, Redfingers, Two-tone finger fin, Hottentot, Chubby clingfish, Klipfish and various shy-sharks. Photography: This is a good site for macro photography, and if the visibility is good, wide-angle should produce good results. Topography: The western pinnacle is fairly compact but made up from a group of large rocks clustered together, with crevices, gaps, and a few overhangs. The highest rock extends about a metre above the 15 m depth, and the local area is generally above 18 m for several metres around. The surrounding reef is relatively low, mostly between 21 and 18 m deep, and the sand is at about 23 m. The reef is elongated from north-west to south-east. The length is estimated at about 220 m, and width from south-west to northeast is about 30 m near the pinnacle. The pinnacle slopes down rapidly to sand to the north-east and southwest, while to the south-east and north-west the slope is more gradual, over quite an area of the low reef. Further to the south-east, it gets more rugged again, and to the north-east, more reef is visible a few metres away across the sand.