The course includes a guided theory session focused on the mechanics and physics behind efficient bifins propulsion.

You will explore how movement is transferred from the body to the fins, how propulsion is generated underwater, and how hydrodynamics influence speed and energy expenditure. We analyze the different phases of the bifins kick cycle, including push and reposition mechanics, and examine how kick amplitude, frequency, and body alignment affect efficiency.

The session also reviews muscle activation patterns, buoyancy balance, and the interaction between diver technique and fin characteristics such as blade stiffness and responsiveness.

Understanding these principles allows divers to refine their technique more effectively and make informed adjustments during training and depth dives.

The confined water sessions focus on refining the mechanics of the bifins kick through structured drills and movement analysis.

You will work on body alignment, streamlining, and hydrodynamic positioning to reduce drag and improve propulsion efficiency. Each phase of the kick cycle is analyzed and refined, including push mechanics, reposition timing, kick amplitude, and frequency control.

Special attention is given to hip-driven propulsion, core engagement, and the transfer of energy from the body through the fins. These sessions allow you to isolate technical details, correct inefficient movement patterns, and build a smoother, more efficient kick.

You will also test different bifins to understand how blade stiffness and fin characteristics influence propulsion, control, and overall performance.

• Body alignment and streamlining
• Hydrodynamic positioning
• Push and reposition mechanics
• Optimum speed versus frequency-to-amplitude ratio
• Hip control and use of core strength
• Buoyancy and balance optimization
• Muscle recruitment and energy efficiency

During the open water session, pool precision is transferred into real diving conditions.

You will apply refined bifins mechanics during controlled descent, focusing on body positioning, kick efficiency, and energy management. Special attention is given to buoyancy awareness, efficient surface-to-depth transitions, and the shift into relaxed freefall.

These sessions allow you to experience how small technical adjustments influence real depth performance. The goal is smooth propulsion, controlled descent, and intelligent energy use throughout the dive.

• Application of optimized kick mechanics
• Body positioning for CWTB diving
• Buoyancy adjustment for efficient descent
• Transition into freefall position
• Surface-to-depth efficiency awareness

Depth means nothing without responsibility.

As part of your theory training, you will complete a dedicated environmental module focused on becoming a responsible freediver. Because performance without awareness has no place in the ocean.

You will learn:

• The fundamentals of marine ecosystem awareness
• The importance of Posidonia oceanica and why seabed contact matters
• How finning technique and buoyancy affect fragile habitats
• Respectful interaction guidelines for marine life
• Local environmental considerations specific to the Messinian Gulf
• How to assess shared water space with boats and other users
• Sustainable equipment and consumption choices
• Daily habits that reduce your environmental footprint as a diver

This module is not optional.
It is part of what defines a real freediver.

At Alchemy Freediving Center, responsibility toward yourself and responsibility toward the ocean are inseparable.

This course provides structured technical refinement, practical open water application, and personalized feedback to improve your bifins performance.

Your course includes:

• Two days of structured coaching
• Two pool or confined water technical sessions
• One open water application session
• Guided knowledge review session
• Individual movement analysis and correction
• Access to high-performance bifins to test different stiffnesses and blade characteristics
• Alchemy Bifins Freediver certification

• Refined bifins kick mechanics and improved propulsion efficiency
• Greater body alignment and hydrodynamic control underwater
• Better coordination between kick amplitude, frequency, and rhythm
• Improved buoyancy awareness and descent efficiency in depth diving
• A deeper understanding of how technique and fin characteristics influence performance
• Practical adjustments you can immediately apply to your future training and dives

We train in calm conditions, in small groups, with full attention on each student.

Progress happens at your pace.
Confidence grows naturally.

You are not compared to anyone.
You are guided toward your own capacity.

This is not a beginner course.

It is a technical refinement program designed for freedivers who want to understand how efficient propulsion actually works.

Bifins diving often appears simple, but the difference between average and high-level performance lies in subtle details: alignment, timing, amplitude, and how energy is transferred through the body to the blades.

This course breaks down those details and rebuilds your technique with precision.

The goal is not to kick harder.

The goal is to move through the water with control, efficiency, and intelligence.