Diver Ian Skipworth looks over the Skeletal remains of a Sperm Whale (Physeter macrocephalus) at Rikoriko Cave, Poor Knights Islands Marine Reserve New Zealand..Friday 25 June 2010.Photograph Richard Robinson © 2010.Dive Number: 260.Boat: Yukon Charters..Site: Rikoriko Cave..Dive Buddy : Ian Skipworth..Temperature: 16.8 Degrees Celsius..Rebreather : Inspiration Vision. Total Time On Unit: 65:26 hh:mm.Maximum Depth: 30.9 meters..Bottom Time: 92 minutes..Bottom Time to Date: 14,661 minutes. .Cumulative Time: 14,753 minutes