GUE Technical Diving · Puerto Aventuras, Mexico

Go deeper.
Build the skills to do it properly.

Open-circuit technical diving for divers who have completed Technical Fundamentals and are ready to extend their depth and capability.

Technical diving is more than going deeper

Technical Diver 1 and Technical Diver 2 build on the foundation developed in Technical Fundamentals, taking that disciplined approach into deeper open-circuit mixed-gas diving.

For many divers, the motivation is simple: there are sites they want to dive that are beyond the limits of recreational diving. That might mean deep reefs, wrecks that have come to rest in deeper water, or other demanding sites where depth changes the planning, gas management and decompression requirements.

The courses are about developing the ability to make those dives as part of a well-prepared team — not simply adding another certification or chasing a depth number.

The GUE technical pathway

Technical Fundamentals provides the foundation. Tech 1 and Tech 2 progressively increase the depth and complexity of open-circuit technical diving.

Technical Diver 1

Maximum training depth: 51 m

Tech 1 takes the skills developed in Technical Fundamentals into helium-based decompression diving. The course develops the ability to plan and execute deeper dives while managing a single decompression gas alongside the back gas.

It is the natural next step for a Technical Fundamentals graduate who is ready to move beyond the range of recreational diving.

GUE Technical Diver 1 →

Technical Diver 2

Maximum training depth: 75 m

Tech 2 extends the open-circuit pathway into deeper helium-based mixed-gas diving, with greater helium content, hypoxic gas protocols and multiple decompression gases. Gas management, decompression and dive planning become substantially more complex.

Tech 2 is a specialised progression for divers who want to continue developing their open-circuit technical diving capability.

GUE Technical Diver 2 →

Equipment for technical diving

Get in touch before you buy anything.

Technical diving involves specific equipment requirements, and it's easy to spend a lot of money on equipment that isn't appropriate for the course — or to buy something that you'll later need to change.

GUE has defined equipment requirements for technical training, but there is also some flexibility in how those requirements are met. If you're planning to take Tech 1 or Tech 2 with me, contact me before buying or changing significant pieces of equipment. I can help you understand what you'll need, what you may already have that will work, and what makes sense for your longer-term diving plans.

The aim isn't to sell you a particular setup. It's to make sure that the equipment you arrive with is suitable for the course and supports the way you'll be expected to dive.

Ask about equipment → Read the full GUE equipment guide →

Technical training in Puerto Aventuras

Mexico is an excellent environment for technical diving training. Based in Puerto Aventuras, I can combine warm, clear water with access to deep sites both offshore and in some of the Riviera Maya's deeper cenotes.

Training with Zero Gravity provides the infrastructure and support needed to concentrate on the diving and the learning rather than the logistics.

Warm, clear water Conditions that make it easier to focus on the skills and procedures being developed.
Deep dive sites Access to both ocean sites and deeper cenotes gives us options for appropriate technical training.
International training Mexico is my home base, but I also travel internationally for training.

Experience matters

Technical diving should be grounded in real experience, not just teaching the syllabus.

I've been diving with trimix since 2001 and have spent more than 25 years diving in locations around the world. My technical diving has included major wreck projects such as the Mars wreck and the Panarea 3 project, as well as extensive deep cave diving.

That experience informs how I teach. The aim isn't simply to get you through a course; it's to help you understand why the procedures matter, how to plan demanding dives properly, and how to operate effectively as part of a team.

Technical diving or CCR?

Technical Fundamentals is also the foundation for GUE CCR training, so there are two different directions you can take your technical diving.

Open-circuit Tech 1 and Tech 2 offer a progressive route into deeper mixed-gas diving. For many divers looking beyond Tech 1, CCR can become the more attractive option because of the different way a rebreather manages breathing gas and decompression logistics.

If you're not sure which route makes sense for your goals, get in touch. We can talk through what you want to dive and work backwards from there.

Explore CCR training →

Ready to go deeper?

Technical Fundamentals is the starting point for GUE technical diving. If you're ready for Tech 1, considering the longer-term Tech 2 pathway, or simply want to discuss what comes next, get in touch.

Don't see a date that works? Published classes are only part of the picture. If you have a particular course or timeframe in mind, get in touch. Classes can often be arranged around your availability.

View my GUE class dates Plan a course

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