Egg case of a Draughtboard or Swell Shark at Flinders Pier, Mornington Peninsula, VIC. I went back 3 weeks later and we found it again. This time it was empty .
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.