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TDI is the largest technical certification agency in the world. As one of the first agencies to provide training in mixed gas diving and rebreathers, Seen as an innovator of new diving techniques and programs which previously were not available to the general public. Training with TDI has provided divers with the opportunity to see such wrecks as the Andrea Doria, Lusitania and the Prince of Wales.

Our divers have explored underwater caves in Spain, Australia and Mexico and assisted as support divers on world record freedives completed in the Red Sea. TDI’s professionals are held to the highest standard to ensure quality training throughout the world. All of the courses we offer are recognised worldwide and represent the two largest training organisations in the world This means that as a diver taking a TDI courses, your instructor will have documented his experience and knowledge prior to achieving that rating. As an instructor candidate taking a TDI course, your instructor trainer will have gone through the paces to achieve the highest level of training that TDI offers.

We are committed to offering the highest quality training supported by the latest materials with the most up to date information and techniques. Training materials are written by authors that acutely conduct the type of diving they are writing about. Those same materials are updated as technology and equipment change.


The TDI Intro to Tech course is the perfect course for divers who have heard about technical diving and want to find out more about this exciting branch of advanced recreational diving. This course walks students through the special techniques, planning procedures, and skills that set technical diving apart from traditional sport diving. It will show them how to improve their dive planning methods, in-water skills, and streamline their existing gear configuration, in a non-threatening and fun learning environment.


The TDI Decompression Procedures Diver course prepares you for planned staged decompression diving. With a maximum operating depth of 45m/150 feet, this course is your first step beyond the normal sport diving limits.

You can combine the TDI Decompression Procedures Course with the TDI Advanced Nitrox course which form the foundation of all other technical courses. After these two courses and some additional experience, the stage has been set for you to move onto additional technical levels.


The TDI Advanced Wreck Diver Course is the next step for any diver that has successfully completed any Wreck Diver Course. During this course, your TDI Instructor will teach you the proper techniques for locating and planning an advanced penetration dive.

Anyone who wants to explore inside shipwrecks & learn how to get out safely in the event of it going wrong, learn with NZ’s highest graded wreck instructors. This is the ultimate wreck diving course for the true explorer!


Please contact us using the enquiry form below, if you would like to know more about any diving options featured on our website. Interested in a particular course? Need help with finding suitable diving equipment? Or, any other questions that you may have? Please use this contact form to get in touch with us.