Intro to Technical Diving is the bridge between confident recreational diving and the disciplined habits technical training demands. TDI's Intro to Tech course introduces equipment configurations, advanced buoyancy and trim, propulsion techniques and gas planning within a strictly no-decompression context. You work on skills you will reuse on every later card: S.T.A.R.T checks, regulator recovery, gas donation, valve drills on doubles and SMB deployment while holding horizontal trim.
Most centres run at least six hours of classroom and briefing time plus three open water dives over two or more days. Depth stays within your current certification and does not exceed 23 m / 75 ft on training dives. RAID, IANTD, SSI and GUE teach similar fundamentals-style programmes with different names and pass thresholds, but the coaching culture is shared: calm repetition until procedures feel boring. That is the point.
You are not becoming a decompression diver on this course. You are learning whether the kit, the planning and the team mindset suit you before committing to Advanced Nitrox or staged decompression pathways. Leave a comment when you book if you trained with another agency and want crossover advice.
Intro to Technical Diving is assessed through in-water performance and instructor evaluation of planning habits. TDI Intro to Tech includes knowledge development; your instructor signs off when skills meet programme standards.
Quick answers about this qualification. For anything else, use live chat or browse bookable activities below.
Find activitiesIt is a bridging course from recreational diving into technical methods: equipment configuration, precise buoyancy and trim, team procedures and structured gas planning. TDI calls it Intro to Tech; other agencies use similar fundamentals-style names.
The goal is a repeatable foundation before staged decompression, twinset, sidemount or helium pathways, not a licence to exceed your current depth rating.
TDI, RAID and IANTD commonly offer Intro to Tech style programmes feeding into decompression and mixed-gas tracks. SSI and GUE teach comparable foundations with different structure and performance gates.
Day-to-day coaching looks similar: workshops, skill circuits and detailed debriefs. Pick the instructor and centre that fit your diary and logbook goals. Leave a comment when you book if you need crossover guidance between agencies.
TDI requires Open Water Diver or equivalent and 25 logged open water dives before the course begins. You should be a comfortable recreational diver with recent time in the water.
Centres may set higher expectations for buoyancy control. If your last dive was years ago, build a few fun dives or a refresher before you add twin cylinders and new kicks.
TDI sets a minimum of six classroom and briefing hours and three open water dives over at least two days. Many centres use two to three full days with equipment workshops.
Performance-based training may extend if the group needs more trim work. Build spare days into travel plans rather than assuming a fixed finish date.
No. TDI Intro to Tech is strictly no-decompression. Training dives do not exceed 23 m / 75 ft. You may use nitrox within your current nitrox certification, but staged decompression belongs on later courses.
Think of this as habits and hardware familiarisation before decompression training.
TDI Intro to Tech covers single, double and sidemount configuration concepts. Many centres teach on doubles or a technical-style single with redundancy options.
Confirm the taught configuration on your listing. Renting a backplate, wing and cylinders for the course is common if you are trying tech before buying kit.
That is common and healthy. Intro to Tech exists so you can test the mindset in a controlled no-decompression programme before committing to deco obligations and expensive gas bills.
Leave a comment when you book if you want a patient instructor or if heavy kit on land worries you. Good centres pace the group without making anyone feel rushed on valve drills. Skills feel awkward until they are boring. That is the point.
Typical next steps include Twinset Foundations if you want more doubles time, Technical Sidemount Diver for a side-mounted pathway, or combined Advanced Nitrox and Decompression Procedures programmes.
Some divers pause here and simply dive recreationally with better trim. There is no shame in stopping if technical training does not match your goals.
Rescue Diver and recreational specialties build safety awareness but do not replace technical foundations. PSAI Nitrox or PADI Enriched Air help with gas analysis habits but not valve drills or team gas rules.
Intro to Tech is the deliberate entry point if you want TDI-style technical progression rather than jumping straight into decompression.
Exposure protection for long skill sessions, wet notes or slate, and a fit-you mask. Centres usually provide technical harness, wing and cylinders for training.
Bring patience for the first day of hose routing. Your instructor has seen the same tangles dozens of times and will help you streamline without drama.
adventuro lists centres running Intro to Technical Diving under TDI, RAID, IANTD, SSI and GUE pathways. Compare kit hire, eLearning inclusion and minimum logbook requirements before you pay.
Training in UK quarries builds cold-water trim habits early. Warmer venues may feel easier on the body but demand the same discipline on gas checks.
