7 common mistakes new divers make – Part 3
Finishing with the section 7 common mistakes new divers make Part 3, we unveil the last part.
6. Exerting yourself excessively when navigating or swimming during dive
As explained during the Open Water Diver course, breathing using an underwater piece of gear (Scuba) requires a certain effort for breathing in. This effort increases as breathed air density also does, which happens as you go deeper.
Considering this, it is extremely important to keep a calm and deep breathing rate, which will allow for gas exchange in diver’s lungs. As a consequence of any minimal physical effort that you make when swimming or change our position underwater, will have an immediate effect, as it increases your breathing pace. This may lead to a feeling of lack of breathed air, which may be mistaken with suffocation or stress.
You should bear in mind that the regulator will always supply a higher volume of air flow than it is required. You should only need to focus on avoiding situations where you are making needless physical effort. To do this, just propel yourself at slow pace. Water density is higher than air’s, therefore moving around underwater requires higher amount of energy. Just apply the principle of “less is more”, the slower you move the better. Get around by kicking with your fins, without using your arms. If you have set up the additional weighting properly, you will avoid making extra finning to get around.
Anyway, if you get yourself in a situation in which additional physical effort is required, such as swimming against the tide, or you have to kick your fins quicker for any other cause, just keep in mind that the suffocation feeling that inescapably follows is temporary. You only need to stop and start breathing again calmly and deeply. When the breathing pace is restored, the unpleasant feeling will fade away.
And finally, the most widespread and the most common of the 7 mistakes new divers make is…
7. Believing that sharks eat up people!!!!!
How much fuss and bother has Spielberg made!!! It would be more accurate if the famous director had made a film on a man who attacks and eats up greedily sharks, which is a more accurate picture of the predatory nature of our species. And… who knows, it might have been a total blockbuster.
To debunk this urban legend one single fact suffices. As yet, there is no single historical record documenting the history of a shark spontaneously attacking or hurting (and by no means eating up) any diver.
In fact, those records of sharks attacking people relate to single occurrence, where surface swimmers have been mistaken by sharks’ natural preys (seals or turtles). As a rule, the attacking sharks are young specimens that are developing their hunting instinct. Mature sharks never make this mistake. Even in these attacks the injuries are produced by bites, which may cause minor or major injuries due to bleeding, depending on what part of the body is hurt, the shark do not feed on the attacked people, as humans are not part of sharks’ staple diet.