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Little Seal Rock: 15-26m

Another historical shipping hazard in the Seal Rocks complex, Little Seal Rock claimed the SS Catterthun on 8 August 1895 when she hit the rock at full speed and sunk within 15 minutes.  Initial salvage operations confirmed fresh scoring on the rock surface, indicative of a collision by the steal hulled SS Catterthun.   Little Seal Rock rises to a peak just above the surface and is best done as a circumnavigation at between 16 to 25 metres depth. The circumnavigation distance increases as depth increases towards the sand. If you have only made it partway around the rock and have used nearly half your air supply , ascend to a shallower depth to reduce both travel distance and air consumption rate, and continue to follow the rock around to the anchor line.    The rock surface is mostly bare with only sporadic growth, however structural features such as gutters, overhangs, caves and bommies attract grey nurse sharks, wobbygong sharks, port jackson sharks, bull rays, eagle rays, black cod, cuttlefish and schooling pelagics. Little Seal Rock is offshore and exposed to the prevailing swell and the East Australian Current running north to south.  All divers should carry a surface marker buoy to signal the boat in case of ascent away from the anchor line in the strong current. 
Visibility is generally good, often crystal clear out to 30 metres.  
Water temperature ranges from 18 to 24 degrees.