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RAID DECO 40 / TDI Advanced Nitrox
& Decompression Procedures (45m)

RAID Deco 40 course: 3-4 days - £550
TDI Advanced Nitrox & Decompression
Procedures course (ANDP):  4-5 days - £695 

DISCOUNTS for two or more!

Course Outline

You can do the RAID Deco 40 in recreational set-up with your BCD/wing & single cylinder or in technical set-up with a twinset. Alternatively, we can offer TDIs Advanced Nitrox & Decompression Procedures course (ANDP), which must be done in twinset configuration. The vast majority of the skills learnt in the first two days will give you a sound understanding of the equipment you will use for your technical diving and the associated skills to handle emergencies effectively underwater. 

From day three the emphasis will be on learning how to conduct safe simulated and live staged decompression using up to 100 percent oxygen in your stage cylinder to a maximum depth of 40 metres or 45 metres if enrolling on the TDI ANDP course. An extra day on the TDI programme would gain you a TDI Helitrox qualification to 45m using up to 35% helium!


  • Deep diver with nitrox qualification

  • 18 years of age

  • 20 logged hours or 40 dives 


Prior to course commencement you will be set up with your online learning materials and will complete these under supervision prior to undertaking any open water dives. 

 Open water dives

Six to seven dives (course dependent)

What is included?

  • Online course materials with lifetime access.

  • Option to go for hardback manual with TDI.

  • Decompression cylinder and stage regulator hire.

  • Certification.

 What is not included?

Your and your instructor's gas is not included. Since the closure of NDAC Chepstow we can use Vobster Quay to complete this course, alternatively you can choose to the complete the course from a boat from Portland/Plymouth/Pembrokeshire. The course will be liable for the Instructor's space. At Vobster just pay your own entry. Any further equipment you require, we can hire this to you at a reasonable cost, including a fully rigged twinset complete with backplate, harness wing and tec regs!

 What’s next?

Once you’ve completed your entry level technical course it’s time to rack up your experience and get some decompression dives done before thinking about progressing straight to a 60 metre normoxic trimix course. Alternatively, you might realise that trimix is expensive and if you’re intending in doing a lot of it, perhaps a rebreather is the answer, our advice is the world renowned JJ-CCR - Talk to us!

Get Involved

Morriston Leisure Centre, Swansea

07859 018970

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