The trusty spearfishing knife has probably saved the lives of more divers and hapless sea creatures than we care to admit. This is definitely one item that you should never get in the water without.
A good spearo knife is an indispensable piece of equipment and something that you can use for a multitude of reasons: from cutting a rope or float-line, extracting stuck shafts from rocks, dispatching a fish quickly and humanely, protecting yourself from predators or even saving a helpless sea creature.
