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Divers UnderGround — TDI/SDI 5-Star Dive Center Playa del Carmen
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Divers UnderGround — TDI/SDI 5-Star Dive Center Playa del Carmen

SDI Assistant Instructor Course in Playa del carmen

Move beyond Divemaster.

Start training to teach with SDI standards at Divers UnderGround.

Bridge the gap between Divemaster and Instructor through supervised teaching, SDI standards training, and hands-on course assistance in Playa del Carmen, Mexico.
 
You already know how to lead divers. Now, develop your ability to support training, manage students, deliver clear presentations, and demonstrate skills with instructor-level proficiency.
 
The SDI Assistant Instructor Course at Divers UnderGround is for certified Divemasters seeking teaching experience without the full responsibilities of an Open Water Scuba Instructor. You will train under the supervision of an active SDI Instructor and/or Course Director, building the judgment, presence, and standards awareness essential for professional scuba training.
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Prerequisites:

SDI TDI instructor crossover prerequisites — active instructor status required

Required Certifications:

Crossover candidate requirements — current teaching status and no active QA investigations

Plus

  • 18 years old
  • 60 dives
  • Current First Response Emergency Care Provider and Oxygen Provider
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Other recommendations:

What Is the SDI Assistant Instructor Course?

The SDI Assistant Instructor Course is a professional-level scuba diving course for certified Divemasters seeking practical teaching experience under supervision. It develops classroom presentation skills, confined-water and open-water teaching support, SDI standards knowledge, student management, risk awareness, and instructor-quality skill demonstrations.

At Divers UnderGround in Playa del Carmen, the course is built around serious mentorship, real course participation, and performance-based evaluation. The goal is not just to earn a rating; it is to become a more dependable dive professional around students, instructors, and training teams.

This course is an important step in the scuba instructor pathway in Mexico for divers who want to progress from Divemaster toward SDI Open Water Scuba Diving Instructor.

Become a More Capable Dive Professional

Assistant Instructor training is where leadership starts becoming instruction.

As a Divemaster, your focus is supervision, control, logistics, and diver support. As an Assistant Instructor candidate, you begin learning how training is built: how to brief a skill, how to demonstrate it clearly, how to support students without taking over, and how to apply standards in a real teaching environment.

This course helps you develop:

  • Better control around students in confined and open water
  • Cleaner demonstrations while neutrally buoyant
  • More confident academic and dive briefings
  • Stronger understanding of SDI standards and procedures
  • Safer decision-making during training dives
  • A clearer path toward becoming a scuba instructor in Mexico
Divers in full scuba gear on a boat checking regulators and cylinder valves before entering the water.

The official SDI standards describe the Assistant Instructor course as training designed to help students gain practical teaching experience under the direct supervision of an active SDI Instructor.

WHERE OTHERS SEE WATER, WE SEE THRESHOLDS.

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Performance requirements

Candidates are certified after completing all required assists, presentations, evaluations, and SDI standards requirements.

Required Course Assists

  • Assist one complete SDI Open Water Scuba Diver course
  • Participate in four SDI Specialty courses
  • Participate in one SDI Rescue Diver course
  • Complete required training hours and course documentation

Teaching Evaluations

  • Complete three academic teaching presentations
  • Conduct confined-water and open-water presentations
  • Demonstrate skills at instructor-level quality
  • Pass the SDI Assistant Instructor exam with a score of 80%

Who Can Apply for the SDI Assistant Instructor course?


Not sure if you qualify? Contact Divers UnderGround
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  • Certified SDI Divemasters or equivalent
    For certified dive leaders ready to begin supervised teaching development.
  • Future scuba instructors
    A strong next step for candidates preparing for the SDI instructor pathway in Mexico.
  • Experienced, prepared applicants
    Candidates must meet SDI prerequisites for age, logged dives, emergency-response training, and professional readiness.
  • Divers who want real mentorship
    Train with feedback on briefings, demonstrations, student control, and SDI standards application.

Course Details

Booking calendar for guided cenote dives in Playa del Carmen

Duration:

Minimum 70 hours. Delivered as an intensive schedule or integrated across real courses you assist with.

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Dives:

Performance-based. You will be in the water for confined and open water presentations, skills demonstrations, and supervised course-assists. No single fixed dive total is stated; completion depends on meeting all requirements.

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Format:

This program includes academic and in-water performance requirements. Start with eLearning, then complete in-water practice and evaluations with an SDI Course Director.

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Certification:

SDI Assistant Instructor certification is awarded by HQ after all knowledge, skill, and performance requirements are completed.

Assistant Instructor Course Price

USD 1399

  • Includes Assisting to:
  • 1. One complete SDI Open Water Scuba Diver Course:
    a. Three limited academic presentations, with at least one physics and one physiology presentation
    b. One limited confined water presentation
    c. One limited open water presentation
  • 2. Four different SDI Specialty Courses.
  • 3. One SDI Rescue Course.
This training is about becoming dependable around students: calm control, clean demonstrations, and consistent standards so you can support courses professionally and step toward Instructor with confidence.
 
What we’ll do first: confirm your prerequisites, map the fastest, compliant route, and align scheduling around real course opportunities for you to assist with.
 
We’ll also flag any missing items early (First Response/O2, logged-dive proof, etc.) so you don’t lose time in the process.
RESERVE YOUR SPOT

Frequently Asked Questions

Do you have any questions?

Share them with us.

Can’t find your answer here? Send us a message, and we’ll be happy to help.
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What is the SDI Assistant Instructor Course?

The SDI Assistant Instructor Course is a professional-level scuba diving course for certified Divemasters seeking supervised teaching experience. It develops presentation skills, knowledge of SDI standards, student management, risk awareness, and instructor-quality skill demonstrations.
This course is for certified SDI Divemasters or equivalent dive professionals who want to move closer to teaching. It is a strong next step for candidates preparing for the SDI Open Water Scuba Diving Instructor pathway.
Yes. Divers UnderGround offers SDI Assistant Instructor training in Playa del Carmen, Mexico, with a focus on professional mentorship, real-world course support, application of standards, and in-water control.
No. The SDI Assistant Instructor rating is not the same as becoming a full SDI Open Water Scuba Diving Instructor. It is a professional step between Divemaster and Instructor that allows candidates to assist with training and perform specific duties in accordance with SDI standards.
Candidates must generally be at least 18 years old, hold SDI Divemaster certification or equivalent, have current emergency-response and oxygen-provider training or equivalent, and meet SDI’s 60 logged dives requirements or 50 logged dives with 25 hours of accumulated underwater time.
The SDI Assistant Instructor Course requires a minimum of 70 hours. The schedule may be intensive or spread across real course-assist opportunities, depending on candidate readiness, training logistics, and course availability.
You will learn how to support SDI training professionally. Training includes academic presentations, confined-water and open-water teaching presentations, skill demonstrations, dive management, risk management, emergency procedures, student control, and application of SDI standards.
After successful certification, an SDI Assistant Instructor may assist active SDI Instructors, support approved SDI courses, conduct certain programs in accordance with SDI standards, and continue toward SDI Open Water Scuba Diving Instructor training. Exact duties depend on SDI standards, active professional status, and local requirements.
Yes. For many Divemasters, the SDI Assistant Instructor Course is a valuable bridge before instructor training. It gives you supervised teaching experience, feedback on your presentations, and a clearer understanding of what professional scuba instruction requires.
Divers UnderGround’s training culture is professional, direct, and safety-focused. Candidates work on control, clean demonstrations, standards awareness, and real teaching preparation in a mentorship-based environment.
Contact us with your current certification level, number of logged dives, emergency-response certifications, and preferred dates in Playa del Carmen. We can review your eligibility and recommend the next step.

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