This huge blue devil was shyly following my movement in an overhang among the kelp beds off Port Lonsdale, Victoria. Camera: Sony DSSC F717 in a Gates housing with Amphibico 10W HID light.
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.
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.