Freediving is the sport of breath-hold diving, it has been around for hundreds of years. People have used its techniques as a method of providing themselves with sustenance from the ocean. In recent years the sport of Freediving has developed as men and women challenge their abilities in time, depth and distance on one breath of air. There are many disciplines in freediving: Constant Ballast, Variable Ballast, No Limits, Static Apnea, Dynamic Apnea (with fins), Dynamic Apnea (without fins), Free Immersion, and more. There are many world records currently held in freediving

Constant Ballast
The freediver descends and ascends using flippers and/or using his arms, without pulling on the rope and without any variation of his ballast; only allowed is the holding of the rope in one single hold (one hand or two) to stop the descent and start the ascent.

Variable Ballast
The freediver descends with the help of a sled and ascends using his/her own muscular strength arms and/or legs (either pulling or not on the rope).

No Limits
The freediver descends with the help of a ballast weight (often a sled) and ascends via a method of his own choice (balloons, etc.).

Static Apnea
The freediver makes the longest possible free dive, the body either in or on top of the water with the face in the water.

Dynamic Apnea
The freediver moves along in a horizontal position under the water, his/her goal being the greatest distance thus covered. This discipline is practiced both with and without fins

Free Immersion
The freediver dives to a depth, without propelling equipment, his/her goal being the depth reached (pulling or not on the rope for both the descent and the ascent).