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Advanced Decompression in worldwide: 7 instructors on TecDiveTools, with the agencies and courses each teaches, and a summary of what students say.
TecDiveTools lists 7 instructors teaching Advanced Decompression worldwide.
Listings are ordered by how much evidence exists about their technical diving, not by a star rating, with any paid Featured listing shown first and marked as such (how rankings work). 6 of these 7 carry reviews we have read and classified as being about technical or overhead training. The count excludes recreational certifications by name, so a busy resort does not outrank a one-instructor cave operation on the volume of its reef trips. Separately, 6 have a written synthesis of what reviewers say about them. How we read and count reviews.
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About the course
A technical course for experienced RAID divers preparing for deeper and more complex diving challenges using staged decompression. Students learn extended bottom times, multi-gas decompression strategies, and advanced breathing gas mixing for mixed-depth profiles. The course is available in two options: 50 metres with air and nitrox, or 50 metres with air, nitrox, and trimix gas blends. This course bridges standard technical diving and extended depth exploration, teaching the gas management and decompression planning skills necessary for deep wreck diving, technical cave systems, and staged decompression in open water.
Demonstrate advanced gas management with two decompression gas stages, multi-stage ascent procedures, decompression stop optimization, gas switching protocols, and complex dive planning for 50-metre deep dives with extended bottom times.
7 instructors on TecDiveTools teach RAID Advanced Decompression worldwide: Thailand (3), Indonesia (2), Mexico (1) and Philippines (1). Each is listed above.
Published prices for RAID Advanced Decompression worldwide range across 2 centres in the TecDiveTools directory. That is IDR 10,000,000–17,500,000 (2 centres). Prices differ mainly in what they include, so compare the inclusions before comparing the numbers. Prices were last checked in September 2026.
6 days, based on the durations 1 centre publishes for it worldwide. The time depends on the centre's schedule, weather, and how quickly the required skills are demonstrated — agencies set a minimum number of dives, not a fixed number of days.
At the same tier in TecDiveTools' cross-agency comparison, instructors worldwide also teach TDI Extended Range (237), IANTD Technical Diver (71) and PADI TecRec Tec 50 (4). They are comparable rather than interchangeable — each agency sets its own standards and card, so check which one your next course accepts.