Technical Diving Courses - Dive Subculture Technical

About Technical Diving International (TDI)

TDI offers a comprehensive progression of courses that guide divers from the entry level of technical diving to the most advanced depths of exploration.

The TDI Intro to Tech course is an excellent starting point, providing tremendous value for those just beginning their technical diving journey. From this foundation, divers typically follow a three-step pathway into deeper, more complex dives: 

TDI Advanced Nitrox and Decompression Procedures, or Advanced Nitrox and Helitrox combined TDI Trimix Diver

TDI Advanced Trimix Diver

Throughout your progression, TDI also allows you to specialize in areas that match your interests, such as DPV (Diver Propulsion Vehicle) Diving, Advanced Wreck, Sidemount, or even Gas Blending.

TDI also offers comprehensive instructor training for those looking to teach technical diving. Take a look at the TDI Flow Chart for inspiration and see how you can expand your diving skills and knowledge. 

Technical Diving Course

About Scuba Schools International XR (SSIXR)

Technical Diving Courses
SSI’s Extended Range (XR) programs offer a clear, structured path for divers to progress from recreational diving to the most advanced levels of technical diving. The SSI XR Foundation Course serves as an ideal starting point, providing essential skills and knowledge for those stepping into technical diving for the first time. From here, divers typically follow a three-step journey into more challenging and deeper dives:
 
  • SSI Extended Range Nitrox Diving
  • SSI Trimix Diving
  • SSI Hypoxic Trimix Diving

As you progress, SSI offers specializations like Advanced Wreck Diving, Sidemount Diving, and Closed Circuit Rebreather (CCR) diving. Additionally, there are professional development courses for those aiming to become certified XR instructors. Explore the SSI XR flow chart to discover the exciting pathways for expanding your technical diving expertise.

TDI-Flowchart-Banner-A0-841mmx1189mm
SSI FlowChart

Explore Our Range of Technical Courses

At Dive Subculture Technical Diving, our TDI Open Circuit Courses are tailored for divers eager to enhance their skills and confidence with traditional open circuit scuba systems.

We believe that mastering the fundamentals is essential for any diver, which is why our courses focus on advanced dive planning, gas management, and specialized equipment use. Starting with the TDI Nitrox course, you’ll discover the advantages of enriched air diving, then progress to the Advanced Nitrox and Decompression Procedures courses, which prepare you for deeper and more complex underwater adventures.

Our dedicated instructors are committed to fostering a safe and supportive learning environment, empowering you to confidently explore a variety of dive sites while elevating your overall diving experience. Join us at Dive Subculture Technical Diving, and let’s embark on this journey together!

The TDI Intro to Tech course is the perfect starting point for divers looking to build core technical skills and confidently explore greater depths.

The TDI Sidemount course teaches divers how to dive with sidemount tanks, offering greater flexibility, streamlining, in both Rec and Tech Diving.

The TDI DP course equips divers with the knowledge and skills to safely plan and execute dives requiring staged decompression.

The TDI Enriched Air Nitrox course teaches divers how to safely extend their bottom time using enriched air blends, enhancing dive safety and enjoyment.

The TDI Advanced Nitrox course expands your diving limits by teaching you to safely use oxygen-rich gas blends for deeper dives and extended bottom times.

This course trains divers to safely conduct dives up to 55 meters, using advanced equipment and techniques for longer, deeper explorations.

SSI’s Extended Range programs offer avid divers the training they need to experience the thrill of technical diving. These programs include specialties like Extended Range Trimix, Semi-Closed Rebreather Diving, Extended Range Cavern Diving, Closed-Circuit Rebreather Diving, and more, allowing divers to explore caves, enjoy extended bottom times, and dive deep reefs and wrecks.

 

SSI’s Extended Range Cavern and Wreck Diving programs equip divers with the skills to conduct cavern and wreck penetration dives using specialized equipment, gas management, and buddy team strategies. With the flexibility to complete the programs in twinset, sidemount, or rebreather configurations, these apex courses ensure divers gain the highest level of technical skill and knowledge, enabling them to go farther, deeper, and beyond their limits.

SSI Extended_Range_Foundation

The SSI Extended Range Foundations program is on elf the most popper advanced diving specialities under the SSI Extended Range umbrella. 

Dive_Subculture_Extended_Range

Are you looking to become a tech diver? To dive deeper, father, or longer than you ever have done before? Begin your journey and extend your range with the SSI…

SSI Extended_Range_Cave_Diving

Do you dream of diving in the crystal-clear waters of a Mexican cent or exploring cavers in the Mediterranean? Become an SSI Extended Range Cavern Diver

Dive_Subculture_Tec_Extended_Range_Nitrox_Diving

The SSI XR Extended Range Nitrox program will certify you to dive to a depth of 40 meters with limited decompression while diving with Enriched Air Nitrox.

SSI_Dive_Subculture_Extended_Range

Improve your streamlining and diver trim with SSI’s Extended Range Sidemount program. Learn the correct sidemount configuration and techniques to go diving;

Dive_Subculture_Advance_Wreck_Diver

Do you dream of exploring ancient ships or famous world war wrecks? Become an SSI Extended Range Wreck Diver and learn how to goWreck Penetration diving up to a …