Cave diving cenote diving Playa del Carmen Riviera Maya Mexico.
Divers UnderGround — TDI/SDI 5-Star Dive Center Playa del Carmen
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Divers UnderGround logo for cenote and cave diving in Playa del Carmen.
Divers UnderGround — TDI/SDI 5-Star Dive Center Playa del Carmen

TDI Nitrox Instructor

Nitrox with clarity, control,

and a standards based approach

The TDI Nitrox Instructor Course in Playa del Carmen is the first step for recreational diving instructors seeking to transition to technical instructor training. It qualifies you to teach enriched air nitrox from EAN-22 to EAN-40, while developing your skills in gas management, student supervision, and the broader responsibilities that come with teaching at this level.
 
The emphasis is on structured, standards-based instruction, giving you the tools to present complex concepts that students can immediately apply in the water.
 
Throughout the course, you will develop structured briefing techniques, deepen your understanding of oxygen-exposure management, and gain the confidence to guide students through gas-selection decisions.
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Course details:

SDI TDI instructor crossover prerequisites — active instructor status required

Includes:

  • Live online training with a TDI Nitrox Instructor Trainer
  • Review of TDI Nitrox standards and teaching procedures
  • Nitrox theory and instructor-level academic development
  • Live gas-analysis skills evaluation
  • Graded Nitrox teaching presentation
  • TDI Nitrox Instructor examination, review, and remediation
  • Instructor-level performance evaluation
SDI TDI instructor crossover prerequisites — active instructor status required

Dives:

Dives are not required.

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

Duration:

6 hours of live instructor-led training, completed in one or two sessions.

Who this is for

The TDI Nitrox Instructor course is Ideal for recreational diving instructors ready to expand into nitrox instruction and take their first step in technical instructor development.
 
It serves as a stepping stone toward advanced certifications, including Intro to Tech, Advanced Nitrox, and Decompression Procedures Instructor.
 
Completing this course strengthens your professional profile and positions you to offer nitrox training with the credibility and consistency of Technical Diving International (TDI)

TDI Nitrox Instructor

This course, for instructors entering the technical path, bridges recreational teaching experience with the more rigorous standards of technical diver training, providing a well-defined foundation for what comes next.
 
Upon successful completion, graduates are authorized to teach enriched-air nitrox independently, adding a valuable extension to their existing instructional portfolio. The certification also serves as a recognized stepping stone within the TDI instructor development pathway, with clear progression available toward Advanced Nitrox Instructor, Decompression Procedures Instructor, and beyond.
Scuba diver entering clear tropical water from a boat while wearing a Nitrox cylinder and full dive gear

Nitrox is often the first meaningful step beyond standard recreational gas use. Taught well, it helps divers build better habits, better planning, and better awareness from the beginning.

 

WHERE OTHERS SEE WATER, WE SEE THRESHOLDS.

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Why Choose
Divers UnderGround

  • TDI/SDI 5-Star dive facility based in Playa del Carmen, Riviera Maya, Mexico
  • Specialized center for cave, technical, sidemount, DPV, and overhead training
  • Facility support built around safety, standards , equipment, and progressive skill development
  • Students train in an environment designed for control, awareness, and consistency
  • Programs are structured to build real teaching competence, not rushed certifications
  • Clear protocols, conservative planning, and operational discipline guide every training day

Why Train With
Divers UnderGround?


Not sure if you qualify? Contact us to review your certifications and options.
Contact Divers UnderGround
  • Divers UnderGround is a professional dive training center in Playa del Carmen with a culture built around standards, mentorship, water control, and real-world preparation.
  • Our background in technical and overhead-environment training shapes the way we teach instructor candidates. This does not mean we turn every Instructor Course into a technical diving course. It means we bring a high-standard mindset.
  • You will be expected to improve. You will receive direct feedback. You will repeat skills and presentations until they become clearer, cleaner, and more controlled.
  • Yes, it is professional-level training. Yes, it is demanding. But training should still feel human, practical, and enjoyable.

Prerequisites:

SDI TDI instructor crossover prerequisites — active instructor status required

Required Certifications:

- Minimum age is 18.
- SDI Open Water Scuba Diver Instructor.
- Nitrox Diver certification.
- 10 logged nitrox dives.

Divers UnderGround certification icon

Plus:

- Candidates must have access to a Nitrox analizer and a cylinder to analize.
- Best suited for instructors with a solid nitrox background who want to teach the subject with more structure.

TDI Nitrox Instructor

1 Candidate USD 325
2 Candidates USD 300
3 or more USD 275

not included

Diver level materials
TDI Upgrade Fee


Required Material: 

1. TDI Nitrox Diver Manual or e-learning.

2. TDI Nitrox Instructor Manual.

3. TDI Standards and Procedures Manual. 

If you have a dive center and want us as your allies to run your operation in the Riviera Maya, contact us. We have special rates for you.

RESERVE

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.
CONTACT US

How can I become a TDI Nitrox Instructor?

If you are an Open Water Scuba Diver Instructor, you can take the training with us. The TDI Nitrox Diver certification may be combined with the Open Water Diving Instructor Development or Crossover program.

6 hours of live instructor-led training, completed in one or two sessions.

Divers UnderGround offers this training online and in Playa del Carmen, Mexico.

Yes, since there are no required dives, you can take the TDI Nitrox Instructor course online.

No. Open-water dives are optional; two dives are recommended but not required.

Camilo Garcia is the TDI Instructor Trainer at Divers UnderGround, with over 18 years of teaching experience and hundreds of certifications to his credit. 

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