Tec 50 and Tec 50 Trimix

Tec 50 Diver Course


Your Tec 50 Diver course will further develop your skills and mindset as a technical diver. You will complete decompression dives as deep as 50m and you will also learn to carry multiple stage cylinders, allowing you greater flexibility with the decompression gasses you select.


What will you learn?

As a Tec 50 diver, you’ll have the knowledge and skills to make extended range dives to a maximum of 50 metres You’ll know how to make dives with multiple decompression stops using two decompression gases. It's not easy to reach this level. Earning your Tec 50 certification opens the door to deeper diving expeditions. There is also an option for divers to earn a Tec 50 Trimix Diver certification.

During the course you will work as a team with your fellow students to plan and execute decompression dives, including using desk top decompression planning software. Whilst in the water you will need to work closely with your team members, assisting each other but always remaining confident that you could deal with any emergency alone if the need arises. You will leave the course confident that you can plan and execute decompression dives independently, using Nitrox and oxygen as decompression gasses, and trimix with up to 40% helium for those taking the Tec 50 Trimix Diver course.


Where is the course held? 

We can use inland dive sites, dives in the sea or a mix of both to complete the Tec 50 Diver course. Local inland sites offer easy entry and training locations for the skills portion of the course. Coastal locations such as Portland, Lyme Regis and Plymouth have excellent sites for you to take your final course dives on exciting local wrecks. If you fancy somewhere warmer why not enquire about taking your course on the wrecks around Malta & Gozo? We are happy to travel to you for the course, so please get in touch to discuss your options.


What Scuba Kit Will You Use?

You will use the same twinset configuration and other technical kit as you used on your Tec 45 Diver course, with the addition of a second deco cylinder.



  • At least 18 years old

  • Medical clearance signed by a physician within the last 12 months

  • PADI Tec 45 Diver & PADI Rescue Diver (or equivalent)

  • Minimum of 100 logged dives or 75 diving hours


Ready To Book?

Simply choose from one of our available course dates below. A £100 deposit will secure your chosen course start date, and the balance can be paid any time before the end of your training. If you don’t see any suitable dates, please get in touch and we can try to accommodate your request.

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