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Extended Range

SSI Extended Range Courses

Train to independently plan and conduct two-gas switch, multiple stop decompression dives using two-stage decompression gases to depths of 50 meters when using Air or 60 meters when using Normoxic Trimix (min 18% Oxygen content).
Complete the programme wearing a full Extended Range total diving system.

Open Water Diver Course

Technical Extended Range

Technical Extended Range Course qualifies you to dive to

  • Depths up to 50m when using Air
  • 60m when using Normoxic Trimix (min 18% Oxygen content)
  • Two stage decompression gases will be used in the program.

The program can only be completed wearing a full Extended Range total diving system.


  • Be At Least 18 Years of Age or Older
  • Science of Diving Certification
  • Diver Stress & Rescue Certification
  • Extended Range or Full Cave Diving or Technical Wreck Diving Certification
  • 70 logged Dives


  • All Course Materials
  • Online Theory Session
  • 1 Pool Session
  • 6 Open Water Scuba Dives
  • Instructor Fees
  • Certification Fees

What's Next?

The fun doesn’t need to stop there! With just a little more training, you can go even further – imagine diving in underwater shipwrecks, with sharks, or becoming an underwater photographer! It's your chance to move to the next level in your diving adventures.

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