AIDA 4 is the final step in the recreational freediving journey before instructor-level training. Designed for experienced freedivers who are ready to push their limits with precision, safety, and control, this advanced course focuses on deep-water adaptation, advanced techniques, and rescue mastery.
✅ Prerequisites & Requirements
To enroll, you’ll need:
- Minimum age: 18 years
- Certified AIDA 3 (or equivalent from a recognized agency)
- Comfortable with deep diving, advanced equalization, and rescue procedures
To certify, you’ll need to complete:
- Static Apnea (STA): 3:30 minutes
- Dynamic Bi-Fins (DYNB): 70 meters
- Constant Weight Bi-Fins (CWTB): 32 meters
- Theory Exam: Minimum passing score of 75%
📋 Course Overview
- 6 minimum water sessions (2 confined water + 4 open water)
- Max depth: up to 38m, based on student performance and safety
- Includes full freediving equipment and AIDA 4 certification
🧘 What You’ll Learn
Confined Water
- Advanced breathing and mental preparation
- Streamlining and energy efficiency
- Rescue from blackout and LMC scenarios
Open Water
- Deep equalization techniques (mouthfill, advanced Frenzel)
- Freefall refinement and depth adaptation
- Advanced buddy procedures and deep rescue
- Dive planning and risk assessment
Theory Topics
- Advanced Physiology and Dive Response
- Lung Compression and Barotrauma Prevention
- Mouthfill Equalization and Pressure Management
- Deep-Water Safety and Rescue Protocols
- Training Cycles and Performance Planning
- Equipment Selection for Deep Diving
- Psychological Preparation and Stress Management