TDI Sidemount Instructor Course in Playa del Carmen
Go beyond diving sidemount. Learn how to teach it with
the precision, and judgment expected from a TDI professional.
Move from diving sidemount to teaching it with precision, control, and professional judgment.
The TDI Sidemount Instructor Course at Divers UnderGround is designed for qualified dive professionals who want to teach certified divers how to safely use side-mounted primary cylinders as an alternative to the traditional back-mounted configuration.
This is not only an equipment course. At the instructor level, sidemount training becomes a teaching discipline: equipment setup, cylinder handling, gas management, trim, buoyancy, propulsion, problem-solving, student control, and safe course delivery must all come together.
Train in Playa del Carmen with a team that works daily with sidemount configuration in cenotes, overhead environments, and technical diving pathways.
Prerequisites:
The TDI Sidemount Instructor Course
The TDI Sidemount Instructor Course trains qualified instructors to teach certified divers how to safely use a sidemount equipment configuration.
At Divers UnderGround, this course is taught as a professional development program. The focus is not only on performing sidemount skills, but also on learning to teach them clearly, evaluate students accurately, and manage training dives with sound judgment.
Teach Sidemount With More Than Personal Experience
Many divers enjoy sidemount because it can offer flexibility, streamlining, access to different cylinder configurations, and improved equipment management when used correctly.
But teaching sidemount requires more than diving it well.
A sidemount instructor must be able to explain equipment choices, correct poor trim, identify gas-management problems, demonstrate skills cleanly, manage student stress, and maintain control of the training environment.
This course helps you move from “I dive sidemount” to “I can teach sidemount efficiently.”
All within a professional, safe, and immersive setting. From the first dive, you experience the reality of cave exploration itself,
where precision, awareness, and presence turn every immersion into something unforgettable.
LEAVE THE WORLD BEHIND
AND DIVE INTO THE VEINS OF THE EARTH
What This Course Is
Designed to Develop
- Teach the complete sidemount learning process from setup to controlled in-water execution.
- Teach the complete sidemount learning process from setup to controlled in-water execution.
- Guide proper cylinder setup, attachment points, hose routing, and balance.
- Explain cylinder options and how they affect trim, handling, and gas planning.
- Teach regulator configuration, SPG positioning, hose management, and accessibility.
- Explain BCD, harness, and weighting considerations for sidemount stability.
- Teach gas-matching procedures, including dissimilar-cylinder volumes.
- Develop gas-management teaching skills using independent cylinders.
- Address psychological considerations for divers adapting to sidemount.
- Build clear briefing habits before students enter the water.
- Refine in-water demonstration quality for buoyancy, trim, and propulsion.
- Teach sidemount-specific S-drills with control and clear sequencing.
- Teach hand signals, light communication, and team procedures.
- Manage gas-sharing scenarios in sidemount configuration.
- Teach response procedures for gas loss or gas hemorrhage.
- Train students to manage sidemount failures with correct emergency procedures.
- Apply difficult water-entry procedures where appropriate.
- Address tight-space considerations when suitable to the training environment.
- Instructor-level control, awareness, conservation, environmental respect, and sound judgment.
Why Train With
Divers UnderGround?
Not sure if you qualify? Contact us to review your certifications and options.
- Divers UnderGround is a TDI/SDI dive center and instructor training facility in Playa del Carmen with daily exposure to sidemount, technical, cave diving, and cenote-based training environments.
- Our approach is direct, technical, and mentorship-based. We focus on clean configuration, practical problem-solving, precise demonstrations, and conservative instructor judgment.
- We are here to help you become a better instructor: clearer in your briefings, sharper in your evaluations, and more controlled in the water.
- Training in the Riviera Maya gives you access to an environment where sidemount is not a theoretical topic. It is part of the daily diving culture, from open-water training to technical and overhead progression.
Details
Dives:
3 Open Water Dives are required
Duration:
2 Days
Includes
- Transportation from Playa del Carmen, Puerto Aventuras and Tulum
- Nitrox 32%
- Cenote entrance fees
- Water, lunch, and snacks
Not included
- Student Materials
- Instructor Materials
- TDI Upgrade Fee
Sidemount Instructor Price
1 Candidate
USD 650
2 or 3 Candidates
USD 600
4 Candidates
USD 550
other costs
Student Level
E-learning or Manual
E-learning or Manual
TDI Upgrade Fee
Ready to add TDI Sidemount Instructor to your professional pathway?
Send us your current instructor rating, sidemount certification, recent diving experience, and preferred training dates. We’ll review your eligibility, confirm the course logistics, and help you prepare the required materials before arrival.
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.
What is the TDI Sidemount Instructor Course?
An instructor-level TDI course that prepares qualified instructors to teach certified divers how to use the sidemount configuration safely and effectively.
Who can enroll?
Candidates must be certified as an SDI Open Water Instructor or equivalent and as a TDI Sidemount Diver or equivalent.
How many dives are required?
The course requires 3 open-water dives.
Is confined water required?
No. The sidemount instructor course is developed at open-water sites.
How long is the course?
The TDI Sidemount Instructor course requires two days. The total duration depends on the candidate’s level.
What will I learn to teach?
Equipment setup, cylinder handling, gas matching, independent-cylinder gas management, buoyancy, trim, propulsion, S-drills, communication, problem-solving, and safe course delivery.
Is this just a sidemount skills review?
No. Candidates must be able to brief, teach, demonstrate, correct, evaluate, and manage students with instructor-level control.
What equipment do I need?
Two independent regulator systems with SPGs, sidemount BCD/harness, exposure protection, mask, fins, dive computer, and an additional depth/timing device. A backup computer is recommended.
Is certification guaranteed?
No. Certification is performance-based and requires successful dives, a final exam, graded presentations, mature judgment, and teaching proficiency.
What can I teach after certification?
Successful graduates may teach sidemount diving within the scope of their rating, qualifications, training environment, and current TDI standards. Cave or overhead instruction requires separate ratings.
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