About The Technical Diver

Richard Devanney is a technical diving instructor

About The Technical Diver


Well then, time to write some words about The Technical Diver.  All blame goes to Richard Devanney, which is me- the person writing this. Hello. That was a deliberate attempt to go from the 3rd person to the 1st person so the rest of the page doesn’t sound weird.


I’ve been a technical diving instructor for 12 years, and have held tech instructor ratings with TDI, SSI Xr, PADI TecRec, BSAC, IANTD, and Raid, and diver ratings with GUE. Obviously, I don’t pay the renewal fees for all that, most of my tech courses are taught with TDI. I own a JJ-CCR and being underwater is my favourite underwater thing to do, along with wreck and wall diving. Although I’m a full cave diver, I haven’t dived caves for a while and would certainly need a decent refresher in navigation before attempting any circuits again.

I created The Technical Diver for two reasons, to promote the dive training that I offered, and to collate articles and videos that would be useful to technical divers. There is a lot of information out there, but it’s not always easy to find. Over time the website has become much less about my training. This was initially because I moved around a lot and was not in a position to be able to teach. However, since COVID, my employment has involved me being more at sea than under it. I’m still involved in the diving industry, but not teaching as much.


This website is not aimed at any particular diver, there is information that should be useful to all. I should probably point out that there is no substitute for proper training in scuba diving. I don’t necessarily personally agree with every single thing that is in the videos or articles section, but I think it is good to see and hear different perspectives and approaches to technical diving.

Diving background

Richard Devanney on the surface in his drysuit, about to go for a dive on his JJ-ccr in Hvalfjörður, Iceland

I have managed dive centres in Thailand, Iceland, and Indonesia, managed a liveaboard in Truk Lagoon, and managed the rebreather diving on a superyacht- the owner dived on a Revo and we did some interesting diving in Massachusetts, the Bahamas, Antigua, and the British Virgin Islands.


I currently manage a dive centre in Norway over the summer and work in Antarctica from November to April as a dive guide/expedition guide for Aurora Expeditions. Next year I will be working solely for Aurora Expeditions, which gives me most of the year to travel around on my sailboat. By travel around, I mean going nowhere and undertaking maintenance.


A week and a half after moving to Norway I managed to break my leg. For my efforts, I received a titanium trim weight. Diving in Norway is pretty spectacular, there are many WW2 wrecks, and marine life is abundant and diverse.

Dive training with The Technical Diver


Courses available include Intro to Tech, sidemount, solo diver, advanced wreck, decompression and trimix diving. I used to teach CCR diving on the Poseidon 6 and se7en- it was the first unit I got certified on. It’s also the first unit I had to bail out from for real- on the first two dives of the course with the instructor ahead of me, completely oblivious! The Poseidon is great to dive, but also frustratingly temperamental to set up without endless battery errors. I own and dive a JJ-CCR, and the difference in setting it up is night and day. I was getting set to do my JJ instructor, but then COVID happened and my career took a different turn so I’m not teaching enough now to justify it. I’m happy fun dive these days.


For information on any of my courses, contact me.

Finally, although it will be of very little use to most people that read this website, when living in Bali I wrote a book for beginner scuba divers. It’s called “Scuba Diving- A short guide to open water training” and is available on Amazon kindle. It’s firmly aimed at those thinking of learning to dive, and provides information to help them understand what they will learn on the course, how they are structured, duration, requirements, and what they will be able to do once qualified.


I hope you enjoy the content on this site.

Header image photo credit: Courtesy of Tony Wong

Tech diving courses

The technical diver articles