Are you looking to expand your dive time? Are you finding your no- decompression limits (NDLs) a limiting factor to dives? Maybe you’re a scientific diver or photographer looking to stay in the water a little longer? The TDI Advanced Nitrox Deco Course qualifies divers to dive to a maximum depth of 45 metres allowing for staged decompression using gas mixes from 21% to 100% Oxygen. You will be able to dive sites which your No Decompression Limit would have not allowed.

TDI Advanced Nitrox and Deco

Choose your options


£650 pp


£950 PP



  • Minimum age 18
  • Minimum certification of TDI Nitrox Diver, or equivalent 
  • Minimum certification of SDI Advanced Adventure Diver, Advanced Diver or equivalent
  • Show proof of 25 logged open water dives


Course details:

The TDI Advanced Nitrox and Deco Course  is scheduled over four days. Before the start of the course you will be sent the ‘TDI Advanced Nitrox’ and the ‘TDI Decompression Procedures’ workbooks which you will need to read before we start the course as well as completing the knowledge reviews. There is also a written exam and a kit orientation, and the minimum required number of dives is 6.

Please have a look at each of the courses for more details:

TDI Advanced Nitrox Course

TDI Decompression Procedures


For all technical diving courses we would expect that you have your own equipment and that you are familiar with it. However, please let us know you are missing anything, you might be able to hire it from us or we could also place an order from one of our suppliers.

At MK Scuba Diving we like to keep the group as small as possible to ensure that you have plenty of time in the water and full attention from the instructor. The maximum students per group is four with the standard and one for the 1-2-1 option

We use mainly Stoney Cove – Sapcote Rd, Stoney Stanton, Leicester LE9 4DW. This is formal quarry which has great facilities and is ideal for dive training. They have a shop, gas filling station, changing rooms with showers and a pub where we usually go to do our debrief.

We also use Vobster and the NDAC so we can be flexible depending on where you are based.