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Aida 4

 Level 4 


 4 Day 


  • 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. 

  • 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.).

  • 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.

Freediver pulls himself deeper underwater using a rope guide

*1-2 professional photos included per student 


  • Be 18 years of age or older.

  • Can swim at least 200m non-stop without fins or at least 300m non-stop with mask, fins and snorkel

  • Have completed the AIDA 3 course or have completed the AIDA 3 Crossover Evaluation if crossing over from another freediving agency

  • Have completed a course in First Aid with CPR within the last two years

  • Can speak and read English

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