Interesting Scuba Diving Facts

Are you looking for a ‘high’ that you’ve never experienced before? A high that doesn’t wear off? Better yet, one that you will always live to remember?

Well, scuba diving can give you a special kind of thrill that frankly speaking; you probably haven’t ever had in your life. Let’s face it, it’s not every day that you get to spend such a long time underwater and as soon as you experience something you usually like to know some background stuff about it.

That is why we created this article with some scuba diving facts. We wrote down eight to start with, but it is pretty sure that there will be added more in the future.

1. SCUBA is an acronym

The word ‘Scuba’ is a short form of the phrase ‘Self Contained Underwater Breathing Apparatus’.

What makes scuba diving possible, practical and safe underwater are the high-pressure metal tanks often attached to the back of the diver.

A regulator breathing device is then used to regulate air supply which is how divers can swim in very deep waters comfortably.

There is also other special equipment that plays a significant role in supporting scuba diving such as wetsuits, diving computers, BCDs and diving masks to mention a few.

2. Sharks aren’t a major threat

Most people who desire to go scuba diving are often left frozen in their tracks just by the thought of coming face to face with a real shark.

Don’t get this wrong. Most people enjoy watching sharks while on a boat or the shore, but many people don´t want to meet this sea creature underwater.

Seems like a no-brainer right? Unless you have a death wish, it’s in your best interests to maintain the fair distance between you and any shark yes?

Well, you will love this fact. Statistics show that only around ten fatalities in the world yearly are caused by sharks while humans kill millions of sharks annually.

Simply put, you will hardly ever come across a shark while scuba diving. Do not forget that many popular diving destinations are usually well scrutinized beforehand to make sure they are safe from any life-threatening sea creatures, sharks being at the top of the list.

Just to paint you a clear picture of how less likely you are going to get attacked by a shark while scuba diving, think about this.

Approximately 150 people are killed by falling coconuts yearly. So it’s correct to say your odds are better about sharks than falling coconuts.

3. Sound travels faster underwater

Stay aware that when you are deep underwater, you might not be able to determine the direction of sound quickly.

The reason being sound travels so much faster underwater than through air. On land, there is a split moment for one to ascertain where the sound you’re hearing is coming from.

Underwater, the speed of sound travel is too high to make out the direction of a sound.

4. No need to be an exceptional swimmer

There is a common myth that totally needs to be demystified where people believe that scuba diving is only for the best swimmers.

That is so far from the truth.

You don’t have to be an Olympic swimming gold medalist to dive.

Of course, knowing how to swim is essential for you but don’t be discouraged from scuba diving simply because you are not extraordinarily good at swimming.

Scuba diving and swimming are very different from each other. For instance, whereas your hands play a critical role in swimming; you don’t need your hands much when scuba diving.

Often all you need is a kick of your legs, and this is made a lot easier when you have perfect fins on.

5. Nitrogen Narcosis can affect all divers

Nitrogen Narcosis refers to a feeling of slight drunkenness as you dive deep underwater.

It’s caused by breathing nitrogen at depths of more than 25-30 metres.

Due to the drunk feeling, your motion capabilities and sound decision-making power tend to be considerably impaired.

Helium, however, can reduce the dangerous effects of nitrogen narcosis.

The amount of helium a diver would need to use to deal with nitrogen narcosis will always be dependent on how deep one had dived.

Most experienced deep divers use trimix which contains a combination of helium, oxygen and nitrogen to stop nitrogen narcosis but in cases where you don’t have trimix; making a quick, controlled ascent will help.

6. Decompression sickness

Decompression sickness or sometimes what other people call the “bends” occurs when a diver begins to ascend very fast hence moving from high outside body pressure to low outside body pressure resulting in nitrogen bubbles forming in the bloodstream and the tissues of the diver.

The symptoms of decompression sickness include fatigue, trouble breathing, headaches and painful joints. It’s worth noting that every time you ascend, this should be done in a controlled manner to avoid making the ascent too fast.

Definitely, one of the scuba diving facts you should remember.

7. Masks are bought first

Many people when planning to go for their first dive purchase the scuba diving mask first.

The mask is not only imperative for you to see but it also provides passage for a pocket of air around your eyes.

When water gets direct contact with the eyeball, a minor refraction error occurs.

This happens because when your eyeball is in close contact with water, any light passed through the water becomes poorly focused by the eyes.

Without the mask, you won’t be able to see objects clearly, but the air around your eyes coming from the mask you’re wearing corrects this slight refraction error making objects visible underwater.

Even then, the objects will look about 30% larger than they are because of the flatness of the lens of your mask.

8. As deep as the bottom of the ocean

One of the most common questions beginners ask is ‘how deep can one dive’? The answer is you can dive as deep as the bottom of the ocean, but the safe zone is up to around 130 feet deep.


Which scuba diving facts can you think? Leave a comment with your ideas. If you liked this post, please subscribe to our newsletter and always be up to date on the newest divingtales publications.

  • February 21, 2016
Click Here to Leave a Comment Below 0 comments