Though some scuba divers do not always bring them along, dive knives can really help you if you find yourself in a bind underwater. They’re some of the more important accessories to bring along aside from the required scuba gear.
Is a Dive Knife Really That Important?
Yes, it definitely is. The reason why some divers do not bring along dive knives is because they do not foresee the need for it. An example is a diving trip wherein they just plan to dive and drift for a while through open water where there’s no chance of them encountering anything that might entangle them. In scenarios like this, bringing along a sharp instrument would only prove to be excessive. However, if you’re planning to make a diving trip wherein there’s a good chance of you encountering seaweed, cables, and other things that might entangle you, it’s better to be on the safe side and bring one.
Don’t Bring Heavy Knives and Other Unnecessary Accessories Along
A dive knife doesn’t need to be fancy, too heavy, or too expensive to have. What matters is that it can help you whenever the situation calls for it. This also is the same with other scuba diving gears that you possess. Being encumbered with unnecessary weight would only cause you to use up more energy and air. Look in local dive shops and see if they have lighter (but still reliable) dive knives.
Always Start with a Small Dive Knife
If you are a beginner diver or you’ve no experience in handling an edged instrument underwater yet, it is best to purchase yourself a small and lightweight dive knife. It should have a range size of two to six inches. Immediately using larger knives can be awkward and difficult to use underwater, increasing the chances of you inadvertently harming yourself and/or your fellow divers. Dive experts would recommend that you use a dive knife with a blade that is less than four inches—perfect for beginner divers.
Select Dive Knives with Serrated Edges
Dive knives range from both serrated and non-serrated types. Knives with serrated edges are preferred as they cut better through ropes, cords, and other materials.
Reminder: Purchasing dive knives with sharp tips is not recommended for newbie divers for obvious reasons.
Additional Tip: Be sure that your dive knife has its own sheath—one that makes it easy for you to pull out the knife whenever you need it.