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Diving is a very ancient practice which consists of underwater exploration using special equipment or not.

There are three types of diving: free, autonomous and semi-dependent or independent. The scuba diving or apnea is the mode in which the diver uses underwater breathing equipment. In the scuba diver is assisted by equipment he carries, which allow you to breathe underwater. It depends on the dive, air supply is not taken by the diver, and food made ​​from the surface through an air compressor and a hose.

The dive is dependent not practiced by amateur divers and athletes, since, as there is limited air to the permanence of man under the water, easily the no-decompression dive end up being exceeded, thus requiring several stops scheduled for decompression. Furthermore, an interruption in the supply of air to the diver can be fatal, depending on the depth and time that is underwater.

For beginners it is recommended diving. Only twelve years of age can you start with the diving.

The dive is dependent on widely used by professionals, especially those who work on oil rigs and construction.

The snorkeling is basically a drop in the techniques without the aid of breathing equipment that ensures underwater. The diver depends solely on your lung capacity, physical fitness and especially emotional control.

There are various forms of competitive free diving or not, among them we have the dip contemplative, as the name says, to watch the aquatic environment, there is the constant ballast diving where the diver descends to a depth determined using a belt ballast, but the same can not be used for guideline, constant ballast without fins, which applies the same rules to the previous except that the use of fins free Immersion is the most natural form possible, where the diver uses only one cable down the greatest possible depth and return. It also has variable ballast, where the diver descends with the help of ballast controlled (sled) connected to the cable guide. After reaching the desired depth, the diver leaves the ballast returns to the surface using the cable guide or simply using the fins and finally no limits, this is the way of the great deep. It is derived from the variable ballast, but the difference is in the return to the surface. The diver can make use of a balloon or inflatable vest, or other mechanical means to move up as quickly as possible, due to the great depth reached.