Are you finding your no- decompression limits (NDLs) a limiting factor to dives? Do you have to ascend sooner than you would like?

As sport divers, planned decompression is not something that we do or have been taught. The TDI Decompression Procedures Course prepares you for planned staged decompression diving. With a maximum operating depth of 45 metres/150 feet, this course is your first step beyond the normal sport diving limits. The TDI Decompression Procedures Course combined with the TDI Advanced Nitrox course form the foundation of all other technical courses. After these two courses and some additional experience, the stage has been set for you to move onto additional technical levels.

The Training

The TDI Decompression Procedures Course includes three parts:

  • Online learning – once you have signed up for the course, we will provide you a code to sign up for the online learning in advance of your practical training to work through at home. You will then go through key areas in greater detail with your instructor and cover areas such as plus many others:
    • Diver physiology
    • Dive tables and planning
    • Common mixing procedures
    • Decompression
  • Classroom training – After you have reviewed the key knowledge areas and ready to go you will then join your instructor for the practical element of your training and cover the following areas:
    • Correct procedures for analysing a Nitrox mix
    • Pre-dive planning procedures
    • Gas labeling and accepted practices regarding oxygen clean equipment
    • Computer set-up and dive planning procedures using Nitrox
  • Open Water Training – After you have covered the key knowledge through the online learning, you will then join your instructor for 4 open water dives where you will cover the following plus much more:
    • Pre-dive checks
    • Emergency management – freeflows, out of air scenarios, stress analysis and many others
    • Buoyancy skills
    • Communication and team awareness


  • Age: 18 years old and above
  • TDI Nitrox Diver and above, or equivalent, from an alternative agency
  •  Minimum of 25 logged dives
  • Good physical health – You will need to fill out a self certification medical statement. If you have any medical conditions you think may prevent you from scuba diving please feel free to contact us




  • Online learning materials + certification
  • Gases + cylinders
  • 4 Open Water Dives
  • Transport to and from dive sites
  • 10% off Aqualung + APEKS dive accessories

Time commitment 

2 days

Combo Deal!

  • Book the TDI Advanced Nitrox Course alongside your TDI Decompression Procedures Course for a total of €799, saving you up to €60! (includes all TDI materials, certification and transport)

Contact us for further details