AIDA 4 Master freediver

This course familiarises students with techniques, knowledge and safety procedures for deep freediving that go beyond recreational freediving. The new techniques will include FRC diving, mouth-fill equalization and packing. The skills are developed within these categories of freediving: Static Apnea, Dynamic Apnea, Constant Weight, Free Immersion and Variable Weight.

In addition to the in-water skills this course introduces full body warm-ups and stretching, specific stretching of breathing muscles, training concepts and diet that benefits the freediver and help shape their development as a diver. You will also be, acquainted with packing and reverse packing, mainly within vital capacity as a part of the dry lessons.

The theory sessions will include: Physics – Dalton’s Law, Boyle’s Law, Henry’s law, Decompression Sickness, Nitrogen Narcosis, Failure Depth and how to increase VC and decrease RV, FRC Diving, Mouth-Fill, Packing, Fitness and Training, Nutrition and Diet for Freedivers.

AIDA4 course & assistant instructor

One of the purposes of this course is to prepare successful candidates for the role of “Assistant Instructor”. This new role will include leading an appropriate warm-up session for confined and open water freediving and supervising students of all course levels during their confined or open water sessions.

An important set of skills concerns managing open water equipment. The use of appropriate knots and braiding techniques, setting the depth on the dive line, constructing a safe bottom weight from a weight belt and diving leads, safe handling of other additional equipment (bottom plate, torches, lanyards, etc.).

AIDA4 programma en vereisten

Als je een advanced freediver bent die wil leren hoe je je levensstijl en training verder kunt aanscherpen om het elite niveau bij freediving te bereiken, dan is deze unieke AIDA4 Master Freediver opleiding wat je wil volgen.

Het master freediver programma bestaat uit drie hoofdonderdelen:

  • Theorie over voeding, ontspanning, ademhaling en klaartechnieken (FRC & Mouthfill). Daarnaast zal je zelfstandig onderzoek gaan doen naar een freedive onderwerp.
  • Zwembad sessies om je static- en dynamic apnea te verbeteren, waar onder dynamic zonder vinnen (no fins). Doel: static van 3:30 min & dynamic van 70 meter.
  • Buitenwater sessies om het ‘mouthfill’ klaren te oefenen en de diepte techniek te verbeteren. Doel: constant weight duik naar 32-40 meter diepte.

Voorwaarden voor deelname

  • Minimum age 18 years
  • AIDA3-certificate (or crossover evaluation)
  • First aid certificate (max 2 years)
  • Medical diving examination certificate (fit for freediving)
  • Your own freediving gear* (rental options available)

*  Freedive mask, snorkel, bifins, wetsuit, lanyard, weight belt & dive computer (depth gauge & timer).


Price: 559 Euro (incl AIDA cert)

The programme includes:

  • Exams & AIDA fee
  • AIDA4 manual
  • Freedive gear to try
  • personal coaching, max 4 students per instructor
  • Video analysis
  • Swimming pool entry fee
  • DAN freedive insurance for students

The programme excludes:

  • Transportation (carpool possible)
  • Dive tower entry fee
  • Wetsuit & freedive gear (for rent)
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