The International Association for the Development of Apnea (AIDA) has seen constant growth and, as a sport, is divided into ten different modalities, each with its unique focus, challenges, and equipment. These different categories of freediving are: No Limits Apnea (NLT) is the deepest discipline, where the freediver descends with a weight and ascends using a method of their choice, such as a balloon, diving suit, or inflatable vest. However, NLT attempts are currently not authorized by AIDA. In Variable Weight Apnea (VWT), the freediver descends with a weight and ascends using their own strength, either by pulling on the rope or not. This modality uses a sled for descent and is performed only for record attempts.

Constant Weight (CWT) is the most practiced depth discipline, where the freediver descends and ascends with fins or a monofin and their arms, without pulling on the rope or changing the weight. A recent variant is Constant Weight Bi-Fins (CWTB), which allows the use of bi-fins. Constant Weight No Fins (CNF) is the most challenging, as it requires descending and ascending without propulsion equipment. Free Immersion (FIM) involves descending and ascending using only the rope. Dynamic Apnea with Fins (DYN) is practiced in a pool, where the freediver tries to cover the greatest distance horizontally using fins or a monofin. In Dynamic Bi-Fins (DYNB), the freediver swims with bi-fins only, attempting to cover the greatest distance. In Dynamic No Fins (DNF), a modified stroke is used. Finally, Static Apnea (STA) focuses on holding the breath for as long as possible on the surface or in a pool, being one of the main disciplines in international competitions.

The evolution of this sport is undeniable and has led to incredible records. For example, since 2009, French freediver Stéphane Mifsud has held the record in the Static Apnea (STA) category with 11 minutes and 35 seconds submerged. On the other hand, in the No Limits Apnea (NLT) discipline, Austrian Herbert Nitsch managed to descend to 214 meters.

There is just over a month left for the next official event: the AIDA Apnea World Championship in Corsica 2024, which promises to be another great AIDA spectacle.