Living with Sharks and Diving Deep

Image via Wikipedia

Retired Navy Diver and current Joint POW/MIA Accounting Command employee, tightens his MK-20 diving mask before a dive during a recovery mission off the coast of Vietnam. (Photo credit: Official U.S. Navy Imagery)

Two matters are discussed here one is related to diving and enjoying company of sharks in the sea:

It is important that we get the necessary scuba equipment and gear before going for it. There are many options available- for a beginner- it’s best to start from the basics such as the mask, fins, snorkel, and weight belt, then move on to advanced sets later. For example: The diving mask allows to see underwater through the glass plate in front. Most diving masks are constructed in such a way that a user can breathe out into the mask. This prevents the squeeze during the descent caused by pressure. Better choose a mask that properly fits face and forms a seal. Most scuba diving masks come with a rubber or silicone skirt that creates a watertight seal with the diver’s face. There are several types of diving masks such as full face diving masks that allow underwater verbal communication, diving helmets using surface supplied diving equipment etc. Prescription masks are also available for people who wear prescription glasses.

The Fins allow moving freely underwater and should perfectly fit the feet. It should neither be too tight nor too loose which can hamper swimming capabilities, we should be very uncomfortable and even dangerous while taking a dive. The snorkel lets breathe at the surface without raising head from the water, and should be no lesser than 30cms in length. The weight belt helps maintain buoyancy so should we consider getting one as a beginner. Some diving suits provide thermal insulation and prevent complications such as hypothermia. Water conducts heat 25 times faster than air from the body. So, choose a suit depending on how warm or cold diving water- is going to be.