Technical Diving

Course OverviewTDI Intro to Tech is the bridge between recreational diving and formal technical training. TDI describes it as the initiation and skills foundation for later courses such as Advanced Nitrox, Decompression Procedures, and Trimix. Rather...

CCR Cave Diver TrainingNSS-CDS CCR Cave Diver is the closed-circuit rebreather equivalent of the Apprentice and full Cave Diver pathway combined. The official NSS-CDS page explains that it covers largely the same knowledge and skills as open-circuit cave...

Course OverviewPADI Tec Trimix 65 introduces experienced technical divers to trimix as a breathing gas for deeper open-circuit diving. Instead of simply extending the same decompression habits from air or nitrox, the course focuses on planning dives that...

Trimix CCR TrainingIANTD Trimix CCR Diver training, reflected in IANTD Spain?s Rebreather Trimix Diver page, is for rebreather divers already involved in deep diving who need full trimix capability on the unit they use. The official page explains that...

Trimix II Diver TrainingNAUI Trimix II Diver is an advanced technical course for Trimix I certified divers who want to plan dives beyond 60 meters or 200 feet using more complex mixed-gas strategies. The official NAUI page describes training for dives...

Train for Technical Mine DivingIANTD Mine Diver is represented on the current IANTD site by the Mine Diver & Technical Mine Diver program, which is designed to train divers in safe technical mine diving. Mine environments can combine overhead navigation,...

Course OverviewTDI Advanced Nitrox expands a diver's gas knowledge beyond basic nitrox and is one of the foundation courses for technical diving. TDI states that the course qualifies divers to use enriched air nitrox from EAN 21 through 100 percent,...

Tech Nitrox and Cave DecompressionNSS-CDS Tech Nitrox and Cave Decompression Diver trains cave divers in staged decompression strategies, emergency management, and proper procedures for using EAN-21 through 100% oxygen in cave dives requiring...

Normoxic Trimix CCR TrainingIANTD Normoxic Trimix CCR Diver training, described by IANTD Spain as Rebreather Normoxic Trimix Diver, prepares qualified rebreather divers for helium-based mixed-gas dives between 130 fsw and 200 fsw. The program is intended...

Course OverviewPADI Tec 50 is the final course in the core open-circuit TecRec sequence before trimix-level training. It builds on Tec 40 and Tec 45 by preparing divers to plan and conduct extended-range dives to 50 metres/165 feet, including staged...

Mixed Gas Blender and O2 TechNAUI Mixed Gas Blender/O2 Tech is a support course for students who need to safely handle high-pressure gases, prepare oxygen-enriched air and helium-based breathing mixtures, and prepare equipment for oxygen service. The...

Course OverviewTDI Advanced Wreck trains qualified divers to plan and conduct more serious wreck penetration dives with technical-level preparation. The official TDI page describes it as the next step after SDI Wreck Diver, with instruction in locating...

Train for Advanced Wreck PenetrationIANTD Advanced Wreck Diver is matched here to IANTD?s current Technical Wreck Diver course page, which covers extended wreck penetration and technical use of breathing gases. IANTD describes the program as training...

Course OverviewTDI Sidemount is designed to teach certified divers how to safely use side-mounted primary cylinders as an alternative to the traditional back-mounted setup. The official TDI standards describe it as a course that may also be combined with...

CCR Diver TrainingIANTD CCR Diver training is a unit-specific closed-circuit rebreather course for competent divers who are ready to learn the safer use and technology of CCR diving. The IANTD Spain individual page describes the program as training...