Technical Diving International (TDI) was formed in 1994 by some of diving’s most experienced instructors. The aim was to bring technical diving applications to a wider audience. TDI courses and training materials have become known as the best in the industry with the most professional resources available. Most importantly, they have the best safety record of all training agencies and have become the largest, specialised dive agency in the world.

TDI instructors maintain the highest levels of professionalism, standards and quality instruction. This ensures that certification is earned so that students walk away proud and competent technical divers.


You will be asked to complete some self study before your initial classroom session. This will be in the form of a manual with knowledge reviews or e learning. We will conduct a theory lesson even if you have chosen the e learning. Theory, class and equipment sessions will be completed before any confined or open water training. We will always train you to the highest possible standards regardless of how long this takes. Extra course dives and being able to learn at your own pace are key to ensure comfort and competency so that you retain what you learn. We believe in thorough training in and out of the water and in doing things properly, to the best of our ability.


  • Nitrox ½ day
  • Intro to Tech 3 days
  • Sidemount 3 days
  • Advanced Nitrox 40m 3/4 days
  • Advanced Nitrox and Deco Procedures 45m 6/7 days
  • Deco Procedures 45m 3/4 days
  • Helitrox 45m 3/4 days
  • Extended Range 55m 3/4 days
  • Trimix 60m 3/4 days
  • Advanced Trimix 80m 5 days or 100m 7 days