Become a dive leader!

The CMAS Diver 3 is the final level course of recreational diving suitable for who, after the D2 certification, wants to continue the scuba diving career becoming a dive leader able to organize and plan dives for groups in almost all environments (lakes, alpine lakes, sea, night dives,…) always ensuring the maximum safety and proficiency. The CMAS D3 certification opens the way also to the instructor career.


The CMAS Diver 3 course is designed to refine and enhance the skills acquired in the D2, and to extend them by learning new abilities like how to conduct groups, how to plan advanced deco dives, how to execute ascents while doing decompression stops, how to react in case of emergencies at increased depths and many other things. Also the acquired theoretical knowledge is refined and improved with advanced physics, anatomy and physiology concepts, basic seamanships topics, CPR and first aid training.

After you get the certification it will allows you to dive until 40 meters depth.


The CMAS Diver 3 course is usually conducted over eight to twelve days (full or half) and includes at least fifteen open water dives (preceded by land drills), one swim test and ten theoretical lessons conducted in classroom.


The course ends when the students have passed a written exam and have fullfilled all the pratical outcomes, included having logged at least 100 total dives.

Pratical Info

In the course fee it’s included:

  • Instruction
  • Course book and teaching materials
  • Certification fees
  • Refills in EAN32 during the training dives
In the course fee it’s not included:

  • Lunches
  • Transfers

Every student must own the equipment required for practice technical diving. Feel you free to contact us in case of any doubt regarding it or to get the list about what’s exactly is needed.

Career Pathway

After you get the CMAS Diver 3 certification you can continue your diving career by taking one of the following courses:


  • 16 Years Old
  • Certified CMAS D2 or equivalent
  • At least 50 dives
  • Medical certificate
  • Minors: parental authorization

Quick Info

  • CMAS Diver 3 Stars
  • Maximum 40 meters
  • Nitrox and or Trimix


Stella Del Curto

Stella Del Curto

CMAS Instructor I2
I’m Stella Del Curto, born in Locarno, Switzerland, the 27 December 1983. Since I was [...]
René Röösli

René Röösli

CMAS Instructor I3 (Germany)

“The best way to observe a fish is to become a fish” (Jacques-Yves Cousteau) The […]

Raffaele Mazza

Raffaele Mazza

CMAS Instructor I4
I’m Raffaele Mazza, born in Locarno, Switzerland, the 25 September 1968.   Diving Qualifications Diving [...]
Marcello Mazza

Marcello Mazza

CMAS Instructor I2

Marcello Mazza, born in Locarno, Switzerland, on 25 April 1962.   Diving Qualifications Diving Experience […]

CMAS Diver 3 Stars

Become a dive leader!