SSI XR Extended Range Nitrox

SSI XR Extended Range Nitrox $1599

The SSI XR Extended Range Nitrox course is where you learn the skills to complete decompression diving to 40m.

Our SSI XR Extended Range Nitrox Course is with back mounted twin tanks and includes 2 trips on our charter boat and your breathing gas.

This course introduces twin tank divers to the equipment and techniques required for completing dives to 40m with up to 15 minutes of decompression using a single stage cylinder to add gas volume and conservativity.

We will spend time in the classroom planning dives using current software and dive computers with the SAC rates you collected during your Deep Diver course.  

We will go to the pool to revisit the basic drills from the foundation course and then introduce the stage bottle.

During the 4 open water dives, you will perfect your skills, recheck your SAC rates and perfect your dive planning for your final dive of the course,  a 40m decompression dive.

Successful candidates will then be able to plan and perform decompression dives to 40m staying within the scope of the course and are able to proceed to the next section of learning, SSI Extended Range.

Practise, Practise and enjoy.  Like all courses once you have completed it you must go and use the skills you learned and practise and enjoy this style of diving.

What you will learn on the course:

  • Technical diving’s risks and responsibilities
  • Technical diving equipment, proper rigging and set up
  • Team diving techniques
  • Emergency procedures including dealing with free flows, manifold leaks and out of gas situations

In water skills include:

  • Following dive plans
  • Stage switches
  • Emergency drills
  •  SAC rates

Cost: $1499 |ncludes 2 trips to the Poor Knights Islands

Cost includes all SSI training, certification and study materials. Any specialist equipment will be provided by the student for the duration of the course.


About your Instructor

Simon has been diving since 2004 and become a recreational instructor in 2011.  In 2014 he started open circuit technical diving, working up to Trimix 65 in 2018, then CCR40 since 2020. He has been teaching technical open circuit courses since 2018.  He is actively diving in all these styles with his roles at Dive Now and for pleasure, normally with a camera in hand.

He has dived extensively at the Poor Knights, New Zealand and loves diving around the world. 

His Technical training was conducted in New Zealand by Tom Crisp and Andrew Simpson and both his Recreation and his Technical Instructor training was conducted by legendary wreck and technical diver Pete Mesley.

He has been lucky enough to dive a handful of the worlds best wrecks and reefs – Wrecks including the WWII wrecks of Truk Lagoon, SS Thistlegorm in the Red Sea, SS Coolidge in Vanuatu, our own Mikhael Lermontov in Marlborough, plus ex HMNZ Waikato and Canterbury here in Northland.  He has dived all over South East Asia and loves the reefs of Indonesia including Komodo National Park, He has led trips to Great Barrier Reef, Red Sea, Maldives, plus our own Poor Knights for the past 11 years and 3 liveaboards in Fiordland and many more.

Course Schedule:

  • Classroom theory sessions 2 × 4 hours
  • Confined water pool sessions 1 × 4 hours
  • Open Water Dives – Minimum of 4 dives – these are usually conducted at the Poor Knights.  

If you are interested in either the XR Nitrox course and these dates are not suitable, then please get in touch and we will see if we can arrange something to suit.

Course Dates
Contact us for dates

Required Equipment available for purchase or rent from Dive Now

  • Twin cylinders with Isolation Manifold
  • Wing and harness with suitable lift for diving conditions
  • Twin regulators with long hose configuration (DIN)
  • 1x Back up computer
  • Mask and Fins
  • Suitable exposure suit for depth and environment
  • 2 x dSMB and reel
  • 2 x cutting device
  • Wet notes
  • Primary light
  • Back up light
  • Back up mask

Future Opportunities

Once you complete the course, you will have the opportunity to practice your skills on our regular dive trips.

Opening Hours | Mon-Fri 8.30-5.00pm  | Saturday 8.30 – 1pm | Sundays Closed

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