Winged Thecacera

Winged Thecacera

Winged Thecacera

Image of a Thecacera pennigera taken at Blairgowrie Marina in Victoria, Australia. Nikon D700 & 105mm in Nexus Housing.
Photocomp December '10 - Open

2010-12-31

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Human Dim Sim in space - or how not to use your SMB!Human Dim Sim in space - or how not to use your SMB!
A useful safety device for most divers is the surface marker buoy. In essence it is an easily seen surface float which is connected to the diver by means of a thin, strong line, usually carried on a reel.
Underwater Card 2