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IANTD Open Circuit

Sidemount & Technical Sidemount

Sidemount diving gives you flexibility and streamlining options. Plus, you don’t have to walk with heavy cylinders on your back – just enter the water, clip them on and go.The Sidemount course will teach you the concepts, equipment configuration and dive techniques for safe and effective use of sidemount equipment in non-overhead environments. 

Tek Sidemount goes a step further, introducing stage and decompression cylinders and the skills and techniques needed to use them safely.

Prerequisites for Sidemount – Open Water Diver and minimum 15 years of age.

For Tek Sidemount – Advanced Open Water, Sidemount Diver. If combining SIdemount and Tek Sidemount – minimum of 30 dives and 18 year of age.

IANTD Essentials


The IANTD Essentials Diver course is for any diver looking to improve increase skill competency.

The IANTD Essentials course takes an in depth look at your buoyancy, trim, balance and propulsion as well as streamlining your equipment configuration. It will examine and expand your fundamental diving skills, helping you to develop better awareness and be a safer diver. Theory topics include dive and gas planning and the course is perfect for anyone, from those wishing to take the first steps in technical diving to experienced divers wanting to refine their diving.
It can be done on open circuit or rebreather and can even be done as a Technical Essentials for more experienced technical divers.

The IANTD Self-Sufficient Diver course is aimed at helping you anticipate problems and arm you with the skill to plan dives safely and problem solve underwater.

Helping you to deal with challenges that would end a dive for a typical single cylinder diver, this skills focused course includes valve shutdowns, delayed surface marker buoy (DSMB) deployment and personal diving skills, getting you closer to those three ‘C’s, confident, competent and capable, making you a safer and more self- sufficient diver.

For both of these courses you just need to be an Advanced Open Water diver.

technical diving


For divers wanting to jump in to the world of technical divining these two courses are where it all starts.

The Advanced Nitrox diver is geared towards diving to a maximum depth of 40m with limited decompression using nitrox bottom gas and nitrox or oxygen for accelerated decompression.

If you feel a bit more adventurous the Advanced Recreational Trimix (ART) course introduces helium in to the mix. Extending your range down to 51m, this really does make the ART course one of the best entry level technical courses for OC divers.

The prerequisites for both of these courses is IANTD EANx Diver or equivalent, IANTD Deep Diver or equivalent and at least 30 logged dives.

Normoxic trimix & Normoxic Plus

Deeper and a step closer to full trimix diving. The IANTD Normoxic Trimix course covers dive planning and gas planning for dives down to 60m.  The course dives give plenty of practice in the skills needed for longer decompression times including coping with emergencies, cylinder handling and refines the skills you have built up on your way to this course.

The IANTD Normoxic Plus can be done as a course in its own right or as an add-on for existing normoxic trimix divers. 

Similar to the Normoxic Trimix course, the Plus gets you deeper still, down to 70m and is an ideal course to really open up some of the best loved diving destinations such Malta and Norway.

Trimix & Expedition Trimix

Opening up a whole new world of wrecks, walls, reefs and caves, the trimix diver programmes give you the skills and knowledge to explore the depths safely.

As a Trimix diver you will be certified to dive to 100m. Gas planning, dive planning, equipment management and dealing with extended decompressions are all covered in the course with ample in-water practice to hone your diving skills to meet these challenges.

For Trimix diver you need to be an IANTD Normoxic Trimix diver or equivalent with 200 logged dives and at least 25 Normoxic dives between 42m and 60m.

Expedition Trimix takes the process another step deeper, down to 120m. Now the oceans and caves really do open up to you.

Advanced gas planning and dive planning, planning for extended decompression, equipment management and contingency planning are covered but with an increased emphasis on the team work needed to accomplish such dives safely.

For Expedition Trimix you need to be an IANTD Trimix diver or equivalent with at least 300 logged dives and 100 logged trimix dives.

Our Tec Support Diver course is an excellent way of preparing for this level of diving.

IANTD Instructor Training

Instructor & Instructor Trainer

For divers or existing instructors aspiring to teach the very best courses that technical diving has to offer, we are able to teach instructors and instructor trainers at for levels of IANTD open circuit courses.

From joining the IANTD ranks as an Advanced Nitrox instructor right through to Expedition Trimix IT we can coach you all the way to achieving your goals.

Get in touch to discuss the course prerequisites and start planning your journey as an IANTD instructor.

What are you waiting for?