Achieve the Ultimate Mastery with the CMAS 4☆-Star Course at Apnea Boom

CMAS 4-Star Freediver Course Sal Island Cabo Verde

Welcome to Apnea Boom: Your Path to Ultimate Freediving Mastery

At Apnea Boom, located on the stunning Sal Island, Cabo Verde, we offer the CMAS 4-Star Freediver course designed for those who are ready to attain the highest level of mastery in freediving. Our expert instructors and top-notch facilities provide the perfect environment to elevate your diving capabilities to the ultimate level.

Why Choose the CMAS 4-Star Freediver Course?

The CMAS 4-Star Freediver course is internationally recognized and offers the most advanced and comprehensive training in freediving. This course builds on the skills learned in the 3-Star course, focusing on deeper dives, advanced techniques, and professional-level confidence in the water.

Course Itinerary

Test Results

At the end of the course, you will be evaluated through a written exam and practical assessments. Successful candidates will earn the CMAS 4-Star Freediver certification, allowing them to dive up to 40 meters worldwide.

Pros and Cons of the CMAS 4-Star Freediver Course



Comparison Table

Course Duration Depth Price
CMAS 4-Star 10 Days 40 Meters 950 EUR
AIDA 4 8 Days 34-40 Meters 900 EUR
Molchanovs W4 10 Days 40 Meters 1000 EUR

Addressing Your Concerns

At Apnea Boom, we understand that attaining ultimate mastery in freediving can come with questions and concerns. Here’s how we address them:

Safety Concerns

Our courses prioritize safety above all else. We provide extensive training in safety protocols and emergency procedures, ensuring you feel confident and secure underwater.


We offer flexible payment plans and equipment rental options to make our courses more accessible. Investing in your freediving education is a step towards a lifetime of underwater exploration and adventure.

Physical Fitness

Our courses are designed for all fitness levels. We include conditioning exercises to improve your diving performance, ensuring you progress at a comfortable pace.


The CMAS 4-Star Freediver course is the pinnacle of the structured progression path. From here, you can advance to professional-level certifications and become a high-level athlete or instructor.

Course Schedule

The CMAS 4-Star Freediver course at Apnea Boom is conducted over ten days, with each day dedicated to specific training modules:

Join Apnea Boom and Achieve Ultimate Mastery in Freediving Today!

Ready to achieve the highest level of mastery in freediving? At Apnea Boom, we offer the most advanced training in the beautiful waters of Cabo Verde. Join us and dive deeper than ever before!"

Join Apnea Boom and Master Your Freediving Skills Today!

Ready to achieve mastery in freediving? At Apnea Boom, we offer the most advanced training in the beautiful waters of Cabo Verde. Join us and dive deeper than ever before!

Start your 4☆Star CMAS course today!

Ready to achieve ultimate mastery in freediving? Enroll in our CMAS 4-Star Freediver course today for just 950 EUR. Visit our website main page to learn more and book your spot now! Dive deeper with Apnea Boom – your underwater adventure continues here.

About Apnea Boom

Евгений Смирнов - руководитель команды Тритоны

   Founder – Evgeny Smirnoff

  • CMAS certified instructor
  • Moscow Apnea Championship winner (2018, 2019, 2020)
  • Static Breath Hold over 6:49"
  • Dynamic Apnea 128 m
  • Dynamic Apnea with bifins 181 m
  • Dynamic Apnea with monofin 204 m
  • Constant Weight Dive 52 m

Why Apnea Boom?

Advanced Training Education

100% satisfaction with your results

Freediving is a Family Sport

Private training and individual lessons

Join us now!

Start freediving today!

Course Enquiry
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Santa Maria, Ilha da Sal
Cape Verde