To use the Hawaiian sling to hunt a lionfish underwater, make sure that first your buoyancy is perfect, because you do not want to crash into the reef, or even worse for you, crash on the lionfish. When you are ready, grab the rubber tubing and pull it down the shaft, towards the spear point. Make sure that there is enough tension on the rubbing tubing. At that point, aim at the lionfish and when you are ready, let the shaft go. The spear will shoot forward and if you aim well, you will hit the lionfish. Remember, lionfish are tough. Even when you hit them straight on their heads, they can still be alive. They are stronger than they look. So, make sure when you hit one, it will not swim off your spear.
If you would like to hunt lionfish yourself, buy your own spear in our shop.