TDI Decompression Procedures

Course duration: Two days

Prerequisites: 18 years old, SDI Advanced Adventure Diver or equivalent, show proof of 25 logged dives, complete the RSTC medical form

Course cost (includes instruction, manual and certification costs): £325 per participant. Not included are site entry, equipment hire, accommodation and gas.


Course description: This two day course prepares you for staged decompression diving to a maximum depth of 45m, the TDI Decompression Procedures course is your first step beyond the recreational sports diving limits. This course combined with the TDI Advanced Nitrox lays the foundations for all technical diving courses.  This course teaches you about decompression planning, decompression dive procedures, proper trim, buoyancy and finning techniques, emergency procedures, and equipment selection and preparation.

Upon successful completion of this course, divers can plan and execute dives to 45m using dive and decompression gases within their certification level.

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Course scheduling: The TDI Decompression Procedures course can be scheduled over any two days where we are at a deeper dive site, such as the National Diving and Activity Centre or Vobster, or on some of our trips.  For dates, see our calendar page or if you don’t find a suitable date there, email us at

How do I book?  Please contact us on or on 07792 723 938


Course combination options?  Decompression Procedures and Advanced Nitrox are often combined to enable divers to learn to use up to 100% oxygen for decompression. This course is run over 4 days and can be scheduled in a number of ways – most commonly 1 day in the classroom, 1 day at a local lake and 2 days at a deeper site. Alternatively these courses can be run on one of our trips. Cost is £600 and includes all materials and certification.