Thailand – Australia – United Kingdom

Mixed Gas Advanced Wreck Diving

Helium induced breathing mixed creates focused environment for extreme wreck penetration.

Koh Tao, Thailand

Big Blue Tech is proud to certify Graeme Scott from his TDI Advanced Wreck , TDI Helitrox and TDI Trimix course conducted over a week long period of progressive training by TDI Instructor James Thornton-Allan off the coast of Thailand on Koh Tao Island.

The TDI Advanced Wreck course is unqiue in diving as it takes a certified technical diver and exposes him to the challenges of wreck penetration while juggling the stress of technical decompression diving. The advanced wreck course is designed to expose the students to elements of hazards, risk and thrills associated with wreck penetration diving including emergency decompression, entanglement, line skills and penetration techniques from progressive penetration to freestyle line work.

The TDI Advanced Wreck course is often taught of depths upwards of 55m, in this case the breathing mix was changed from convention air to helium based mixes to keep an equivalent narcotic depth above 30m allowing the student to have a clear head for the more challenging penetrations at narcosis depth levels.

After combined dives on trimix Graeme finished off with an air based dive post certification to gain appreciation for the difficulties of narcosis induced wreck penetration which includes many errors in judgement, confusion and general over confidence.

This course culminates Graeme’s training as part of his month long internship and he now returns to England where he will continue to practice his skills and certification at his local dive club.

You can view more pictures on our  Big Blue Tech Facebook Fan


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