There are certain areas of the world offering spectacular diving to depths greater than 40m but without helium being available locally.


The TDI Extended Range course teaches you the proper techniques for utilizing compressed air as a breathing gas to a maximum depth of 55m, so you won't have to miss these dives.


The Extended Range course will cover topics and skills such as:

  • Equipment requirements and configuration
  • Decompression options
  • Use of surface marker buoys
  • Buddy rescue
  • Narcosis checks and management


Materials required for this course are the TDI Extended Range Diving Manual and Deco planning software.



  • TDI Advanced Nitrox and TDI Decompression Procedures Diver (or equivalent certification).
  • Minimum logged dives: 100 (of which at least 25 must be deeper than 30 metres and at least six must be deeper than 40 metres).
  • Minimum age: 18 years old


Course duration: 4 days - 6 dives

Price includes hire of cylinders, weights and road transport to the dive sites.

Mixes, boat charter ( if required) are extra

Manuals and registration fees are extra.


Kindly email us your dates to check availability of this course prior to purchasing online.