TDI
Instructor TrainerTechnical, decompression, rebreather and instructor-level development.
Train · Technical
Develop precision before extending range.
A staged technical pathway focused on configuration, control, planning, decompression and sound team procedures.
Standards connected to this pathway
Agency roles with a clear purpose.
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TDI pathway
Progress one capability at a time.
Technical training develops the practical discipline needed for more demanding objectives. Open each course to review its full description and applicable training information.
TDI Intro to Tech
An introduction to technical diving and the pathway toward Advanced Nitrox and Decompression Procedures. The course familiarizes divers with technical equipment configurations, refines open-water buoyancy, trim and situational awareness, and introduces advanced gas planning within a strictly no-decompression context. Enriched-air nitrox may be used within the diver’s current certification limits, and the course may be combined with Advanced Nitrox at the instructor’s discretion.
3 daysUSD 350 per day
TDI Open Water Sidemount
Learn to use sidemounted primary cylinders safely as an alternative to a traditional back-mounted configuration. The course develops configuration, trim, gas-management and problem-solving skills and may be combined with other TDI programs, including Decompression Procedures, Extended Range, Trimix, Advanced Trimix and Advanced Wreck, provided all standards for both courses are met.
2 daysUSD 350 per day
Advanced Nitrox
Extend your knowledge and practical use of enriched-air nitrox. The program develops a deeper understanding of EANx, oxygen exposure and gas selection, and prepares qualified divers to use enriched-air mixtures responsibly for dives to 40 metres / 130 feet, including limited decompression obligations within course and agency standards.
2 daysUSD 350 per day
Decompression Procedures
Study the theory, methods and procedures required to plan and conduct staged decompression dives. Training covers dive planning, equipment configuration, decompression techniques, gas management and emergency procedures, and may be completed as a stand-alone course or combined with Advanced Nitrox where appropriate.
2 daysUSD 350 per day
Advanced Nitrox + Decompression Procedures
A combined progression that integrates enriched-air and oxygen knowledge with the planning and execution of staged decompression dives. Students develop gas-selection, equipment, buoyancy, team and contingency skills through one coherent technical-training program.
3 daysUSD 350 per day
Extended Range
Develop the planning discipline, equipment procedures and in-water control required to responsibly extend depth and decompression capability. The course emphasizes gas management, team protocols, emergency planning and precise execution in demanding open-water environments.
2 daysUSD 350 per day
TDI Helitrox Diver
Examine the theory, methods and procedures for staged decompression diving with helium in the breathing mixture to reduce inert-gas narcosis. Learn to plan and conduct dives to a maximum of 45 metres / 150 feet using enriched air and helium mixtures with no more than 35% helium, plus oxygen concentrations up to 100% for decompression.
2 daysUSD 350 per day
TDI Trimix Diver
Expand your depth range while managing narcosis through the use of helium. Learn to plan and execute dives with breathing mixtures containing as little as 18% oxygen and an appropriate helium fraction for the planned depth, to a maximum of 60 metres / 200 feet.
3 daysUSD 350 per day
TDI Advanced Trimix Diver
The highest level of open-circuit mixed-gas training in this pathway, designed for qualified divers progressing to depths as great as 100 metres / 330 feet with hypoxic breathing mixtures containing less than 17% oxygen. The program demands mature judgment, precise planning and disciplined execution. A dry suit is mandatory.
3 daysUSD 350 per day
Open Water DPV
Learn to use a diver propulsion vehicle to cover underwater terrain efficiently while maintaining control, team awareness and a sound gas plan. Training addresses equipment preparation, positioning, communication, turn points, failures and responsible operation around reefs, wrecks and other open-water environments.
2 daysUSD 350 per day
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Included
Core training support.
The following services are included when applicable to the selected course and configuration.
- Private instructor and classroom sessions.
- Transportation from the shop to the cenote or boat.
- Required single, sidemount or doubles cylinders where applicable.
- Weights and EAN32 fills where applicable.
- Certification card.
- Water and snacks.
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Not included
Plan for site, gas and equipment costs.
These items are quoted or paid separately because requirements vary by course, site and diver.
- Cenote entrance fees: USD 15–30 per person, per day.
- Oxygen, decompression gases and trimix where applicable.
- Lunch, course manual or eLearning.
- Personal scuba and cave-diving equipment.
- Specialized equipment rental; CCR unit rental is USD 70 per day.