This advanced technical diving programme trains divers to safely use Trimix for deep exploration to a maximum depth of 65 metres. It focuses on complex decompression planning, multi-gas management, deep exposure considerations, and the redundancy required for dives well beyond recreational limits.
Training begins with extensive theory, covering gas physics, helium considerations, narcosis management, and deep exposure physiology. You will review how to select and analyse Trimix blends according to depth, decompression requirements, and contingency plans. These knowledge development sessions provide the basis for the practical components, including gas analysis, equipment configuration, bailout planning, and advanced emergency procedures.
Open-water sessions involve 6–8 deep technical dives where you will apply multi-gas switching, deep descent protocols, extended decompression stops, and advanced ascent management. You will use multiple decompression gases and may employ Argon inflation systems for drysuit use, depending on your equipment. Each dive reinforces planning discipline, controlled team movement, redundancy checks, and awareness during long-duration decompression.
The course culminates in a final evaluation dive at depth, assessing your ability to perform controlled descents, stable gas switches, precise decompression stops, and confident emergency handling under realistic task loads. Upon completion, divers are qualified to conduct Trimix dives to 65 metres using multiple decompression gases.
Preparation and equipment workshops occur in controlled-water environments, giving you space to configure cylinders, practise gas-switch protocols, and rehearse emergency drills without environmental distractions. These sessions focus heavily on equipment precision, correct staging of cylinders, and maintaining stability while handling multiple gas sources.
Deep dives take place at sites with reliable depth profiles and suitable water conditions for extended-range Trimix training. These locations allow you to carry out long ascents with multiple decompression stops while maintaining predictable navigation and controlled exposure. Surface facilities support gas analysis, Trimix blending, debriefing, and equipment preparation for each dive.
Divers must hold a Tec 50 certification or an equivalent rating that verifies safe performance at 50 metres with decompression gases. A minimum of 100 logged dives ensures sufficient experience handling depth, task loading, and equipment redundancy. A medical clearance signed by a doctor within the last year is required due to the significant physiological demands of deep Trimix diving.
Participants should arrive with strong decompression planning skills, stable buoyancy control, and experience conducting emergency drills at technical depths. Completing all theory sections and knowledge reviews before in-water sessions ensures you’re ready for high-level problem-solving and precise execution.
You will train with instructors experienced in deep Trimix operations and extended-range technical exploration. Their approach emphasises methodical skill progression, strict adherence to procedures, and clear communication, ensuring divers understand the reasoning behind every protocol and gas choice.
The training environment is structured, supportive, and safety-focused, with well-maintained technical equipment and detailed oversight during all deep exposures. This programme represents a significant milestone in technical diving progression, giving divers the competence and confidence to explore deeper environments with disciplined planning and professional-level execution.
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The Palm Jumeirah, Dubai
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