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        It is high time we introduce you to the basics of equipment. All of a divers equipment is referred to as the Total Dive System. Below we have examples of the primary equipment that is necessary to dive safely and comfortably.

Cylinders: First of all, this is not a tank! This is the most crucial part of the Total Dive System, your air, nitrox, or mixed gases source. Comes in aluminum and steel. These materials both have various effects on your buoyancy. Steel is heavier with a more consistent buoyancy, and aluminum's buoyancy fluctuates with the amount of air inside.

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Regulators: This is second most important piece. This is the main part of the Air Delivery System. This goes inside your mouth and it reduces the massive pressure at which air exits the cylinder when opened. Never try to take in air directly from the cylinder. Why, because you will explode.

Masks:  Since the human eye functions best in an air based environment, the mask allows you to bring a pocket of air down for your eyes, enabling you to see underwater. Comes in assorted colors.

Gauges: This provides all the information you need to make full use of your self-contained-underwater-breathing-apparatus (SCUBA). There are digital and analog versions.

Buoyancy Compensator: The only other name for this flotation vestment is BC. This does exactly what it's named for, it gives you control over your buoyancy. Some BCs also have integrated weight systems. It sounds crazy, but you do need additional weight or you won't be able to submerge.

Fins: These make movement underwater so much easier. There are many styles for different divers. There are split fins which are built for comfort and maneuverability, but not durability. There are also paddle fins built for speed and longevity. They often have vents to reduce the effort needed, but they can give you a good workout to really get moving.

the following equipment is optional

    The amount of equipment out there is HUGE. However, here's some more gear for the intense diver. A wetsuit (left) helps the body store heat. The wetsuit is the biggest part of the Exposure System. These should be worn when diving in waters below 90F or 33C. Often made from neoprene with layers of titanium for better insulation. The snorkel (center) is helpful on the surface because, it conserves the air in your cylinder. Some snorkels are equipped with dry vents and purge valves to keep water out. Finally the diver's tool (right), this is not a weapon for fighting off sea creatures or, God forbid, other divers! It is used to signal other divers by tapping it against your cylinder or for cutting or prying away netting or coral you happen to get stuck on. You shouldn't swim near that stuff anyway.