
TDI INTRO TO TECH DIVER COURSE
DURATION
3 days
IN A NUTSHELL
The TDI Intro to Tech Diver Course with CDT Mexico is designed for divers looking to refine fundamental skills and gain familiarity with redundant backmount configurations in preparation for technical or cave diving.
Students will develop precise buoyancy and trim control, advanced propulsion techniques (including modified frog kick, reverse kick, and helicopter turns), and gas management using the rule of thirds. The course emphasizes equipment configuration, setup optimization, and redundancy awareness, ensuring divers understand and adapt their gear for various environments.
In addition to mastering breathing control and situational awareness, students will refine entry/exit protocols, equipment donning and doffing sequences, and problem-solving strategies.
By the end of the course, divers will have a solid foundation in technical diving skills, preparing them for more advanced training in deep or cave environments using the classic backmount twinset.

PRE-REQUISITES
Students must be 18 years old, and:
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certified as an SDI Open Water Scuba Diver (or equivalent)
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have a minimum of 20 logged dives
SUBJECT AREAS
During our TDI Intro to Tech Diver Course, we will focus on the following aspect (on top of reviewing everything else from previous levels) Underwater: - gas management (awareness, reading and keeping reserve gas) - valve drills (opening/closing/switching regulators and valves) - gas donation - hand and light communication - basic fundamental techniques : breathing, buoyancy, trim, propulsion, and positioning - advanced propulsion techniques : mod frog kick, mod flutter kick, reverse kick and helicopter-turn - problem solving : mask replacement, light failure, etc. - leakage and haemorrhages : valves, regulator first and second stage, free-flow, LPI hose, etc. - lift bag deployment On land: Land-drills and simulations of procedures - configuration and set-up - pre-dive checks and team’s dynamic - do/doff sequences - communication - gas donation simulations - valve-drills simulations Briefings and de-briefings - pretty much everything… White board presentations and discussions - awareness and mind-set - rule of 1/3 and conservatism - keeping gas redundancy - dive planning - potential failures and counter-measures - emergency and safety procedures - psychological and physiological considerations - mind-control and stress recognition and management
MEET NEW CHALLENGES
Diving a twinset is more complex than the usual single cylinder of course, and also heavier in the water. Wings and backplates are new equipment for most sport divers, and a higher level of awareness is required, as the complexity of the equipment configuration increases. Intro to Tech divers also needs a deeper understanding of gas planning, as they carry redundant cylinders and apply new rules and new concepts such as conservative thirds, rock-bottom reserves, gas matching, and eventually cylinders matching. It is extremely interesting to learn, and if you’re curious enough, you’ll be addicted to the theory side as well as the diving part! Well, ok, almost as much!
COURSE DURATION
The TDI Intro to Tech Diver Course has a duration of 3 days with CDT Mexico. TDI Intro to Tech diver = 3 days
DURATION OF THE COURSES
PRICE OF TRAINING
MEANING OF "PERFORMANCE-BASED TRAINING"
BEFORE STARTING THE COURSE / BOOKING
HOW TO PREPARE FOR A COURSE