This course focuses on the instructor side of advanced nitrox training: how to organize the class, present the material clearly, supervise skills and dives, and apply standards with consistency. It is built for instructors who want to improve teaching quality, student control, and decision-making in a more demanding training setting, while preparing for the next level of technical instructor development.
TDI Advanced Nitrox Instructor
Cross the threshold from a recreational educator
to a technical mentor.
The TDI Advanced Nitrox Instructor course at Divers UnderGround in Playa del Carmen qualifies you to teach EAN mixtures from 21 to 100 percent oxygen, covering Best Mix calculations, Maximum Operating Depth, and no-decompression dive planning.
The curriculum addresses hypoxia, CNS and Whole Body oxygen toxicity, nitrogen narcosis, and CO/CO2 risks, alongside equipment requirements for high-oxygen mixes and multi-gas dive computer use, building the physiological depth and teaching structure your students need.
Browse our full range of diving services in Playa del Carmen to find the program that fits your goals.
USD 300/diver/day · Based on 2 divers, 2 days · Includes transport, Nitrox, and cenote entry.
Prerequisites:
Required Certifications:
- Minimum age: 18
- TDI Advanced Nitrox Diver
- Have certified at least 10 nitrox students
- 100 logged dives, including at least 25 nitrox dives
Plus
- Includes academics, dry runs, and required open water
- Core requirements always apply
Who this is for
TDI Intro to Tech Instructor course
Train in a professional, safety-focused environment where standards, decision-making, and teaching control come first. Through realistic teaching scenarios and practical application, you will build the skills, structure, and confidence required to become a capable and dependable TDI Advanced Nitrox Instructor.
WHERE OTHERS SEE WATER, WE SEE THRESHOLDS.
Why Choose
Divers UnderGround
- TDI/SDI 5-Star dive facility based in the Riviera Maya, Mexico
- Specialized center for cave, technical, sidemount, DPV, and overhead training
- Courses conducted in real Mexican cave and cavern environments
- Direct access to cenotes, cave sites, gas logistics, and field-based training locations
- Facility support built around safety, standards , equipment, and progressive skill development
- Training logistics organized for transportation, rentals, cave access, and daily planning
- Students train in an environment designed for control, awareness, and consistency
- Configuration, buoyancy, trim, propulsion, and team procedures are refined from the start
- Programs are structured to build real cave-diving competence, not rushed certifications
- Clear protocols, conservative planning, and operational discipline guide every training day
Camilo Garcia TDI/SDI Instructor Trainer
- Founder of Divers UnderGround.
- 18 years of experience
- 334 certified students, and 21 professionals trained
- Teaching grounded in real cave exploration and survey work
Details
Dives:
4 open-water dives.
All dives below 23 m / 75 ft.
2 below 30 m / 100 ft.
Max depth: 40 m / 130 ft.
Duration:
The Advanced Nitrox instructor course takes two days. Three days if combined with the TDI Decompression Procedures Instructor course.
Includes
- Transportation
- Nitrox 32%
- Cenote entrance fees
- Water, lunch, and snacks
Training per day
1 Candidate
USD 325
2 Candidates
USD 300
3 or 4 Candidates
USD 275
not included
Student Materials
TDI Upgrade Fee
Required Material:
1. TDI Advanced Nitrox Instructor Guide.
2. TDI Standards and Procedures Manual.
3. TDI Advanced Nitrox student manual or eLearning.
4. TDI Advanced Nitrox PowerPoint.
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.
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.
Who is the TDI Advanced Nitrox Instructor course designed for?
Recreational diving instructors with solid, hands-on nitrox experience who are ready to step into technical instruction and expand their teaching credentials beyond recreational diving.
What are the prerequisites?
You must hold an active dive instructor certification and a TDI Advanced Nitrox Diver certification (or equivalent). A minimum number of logged dives is also required; contact us to confirm your specific pathway before booking.
How long does the course take?
2 days. This includes academic sessions, dry runs, and all required open water evaluations. Theory can be completed via TDI eLearning before you arrive, making your in-water time more efficient.
What is included in the course price?
USD 275 per day. Includes transportation, nitrox fills, and cenote entrance fees. Core TDI certification requirements always apply.
Can I complete part of it online?
Yes. Complete all academic and theory sessions online with TDI eLearning or the manual before your in-water training in Playa del Carmen. This ensures your two days on-site are dedicated entirely to practical skills and evaluations.
Why take this course at Divers UnderGround vs. elsewhere?
You train directly with Camilo García, a TDI/SDI Instructor Trainer, one of the very few in Latin America, inside real cenote cave environments in the Riviera Maya. No pool or quarry can replicate such conditions for your TDI Advanced Nitrox Instructor evaluation.
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