To understand the trade, it helps to mix three sources: channels run by working divers such as The Salty Diver or Working Underwater, communities where things are discussed with judgement, and the official documentation from IMCA, ADCI, HSE and DMAC. Videos give context; standards give the data you can actually cite.
Before spending several thousand euros on a course, almost everyone goes through YouTube first. That makes sense: commercial diving is a low-visibility trade, with few professionals and a high barrier to entry, and videos are the fastest way to see what the work is actually like. The problem is that it's also the place where things get exaggerated the most.
This guide brings together sources that help you understand the trade properly: channels run by working divers, communities where things are discussed with judgement, bodies that publish the real standards, and the odd documentary worth the time. And above all, a method for separating what's useful from what's just spectacle.
What to look for in a source about commercial diving
Commercial diving is a regulated trade. Almost everything that matters — who can dive, with what equipment, under what supervision, with what tables and what medical clearance — is written down in published rules and standards. That gives a simple rule: a source is reliable to the extent that it can point to where what it says comes from.
The second rule is context. A diver on harbour works in the Mediterranean, one doing hull inspections in Rotterdam and a saturation diver in the North Sea do different jobs, under different regulations and for different pay. When someone talks about "commercial diving" in the abstract, without saying which market, be suspicious. We ourselves keep those worlds separate in saturation vs surface diving.
- Who's talking: a working diver, a supervisor, a systems technician, a trainer, or someone who just edits other people's footage.
- Where they work: the country and the regulatory scheme shape everything else.
- When they recorded it: the 2015 market isn't today's, neither in rates nor in volume of work.
- What they don't mention: rotations, time without a berth, injuries, divorces and the real cost of training are all part of the trade.
- What they gain by telling it: a school promoting its courses and a diver sharing their experience don't have the same incentives.
YouTube channels worth your time
The Salty Diver
Probably the reference channel in English for anyone considering entering the trade. It's run by a commercial diver and its stated approach is informative: explaining the real risks, debunking common myths about the profession and giving context on how the work actually functions from the inside. It also has an associated website with written material.
What's interesting about this channel is that it doesn't sell the trade. It talks about how hard it is to get started, about bad seasons and about what's expected of a novice tender. It's exactly the kind of content worth watching before enrolling in a school, not after.
Working Underwater
A channel run by a professional with years of experience in commercial diving and marine construction, with his own material filmed on the job. It helps you picture the day-to-day: kitting up, comms, underwater construction tasks and the real pace of a working day, which is much less cinematic than it tends to look.
It's a good complement to the previous one: less analysis and more footage of the work itself. For someone who has never seen a gas panel or an umbilical laid out, that material is worth a lot.
Content in Spanish
In Spanish the offering is much scarcer, and it's split between short-form content and school publications. One of the most consistent accounts is Atmosfera7 (@atmosfera7diving), which publishes short pieces explaining commercial and saturation diving concepts in accessible language: decompression, the tender's role, pre-dive checks, or the differences between recreational and professional diving.
Short-form content has an obvious limit: it's good for sparking interest, not for making decisions. Use it as an entry point and then cross-check it against serious documentation. If you're looking for Spanish-speaking people to talk to about the trade, we've put together references in the community section.
Company, school and manufacturer channels
Many contractors and manufacturers publish good-quality technical videos: walkthroughs of saturation systems, how bells work, diver recovery procedures, or equipment presentations. As visual material it's some of the best there is, because it's filmed at real facilities and with technical judgement behind it.
The bias is just as obvious: nobody shows an operation that went wrong or a cancelled campaign. Treat them as an annotated catalogue, not a portrait of the trade. The same applies to school videos, which are promotional by definition; to judge a school, compare programmes, accreditations and actual job outcomes, and check our selection of schools.
Forums and communities
Forums are still where people say the things that don't get said on camera. ScubaBoard is the largest diving forum in English and has areas dedicated to professional diving where commercial divers, instructors and technicians take part. Reddit also has active communities on commercial diving and offshore work, with recurring threads about schools, first seasons and contract terms.
LinkedIn groups and private channels of former school alumni are often even more useful for the practical side: who's hiring, which vessel is heading out on campaign, and which contractor pays on time. That kind of information circulates through direct messaging long before it reaches any website.
- Search the archive before asking: almost every beginner question has already been answered a hundred times.
- Be wary of stray pay figures with no country, rotation scheme or year attached. We break down the mechanics in how much a diver earns.
- Cross-check any school recommendation against at least two independent sources.
- Be careful with job offers that show up on forums and social media: scams targeting aspiring offshore divers are common.
- If someone offers to place you on a vessel in exchange for an upfront payment, it's a scam.
Bodies and associations: the source that rules
When the data matters — depths, procedures, medical requirements, the supervisor's obligations — you need to go to the source, and the source is the sector's bodies. A good part of their documentation is publicly available.
- IMCA (International Marine Contractors Association): the marine contractors' association. It publishes guidance, technical documents and safety flashes drawn from real incidents. It's the practical reference across much of the international market.
- ADCI (Association of Diving Contractors International): the American diving contractors' association. It publishes the consensus standards that govern much of commercial diving operations in the United States.
- HSE (Health and Safety Executive, United Kingdom): the British regulator. It publishes the approved codes of practice under the Diving at Work Regulations, with separate texts for offshore projects (L103) and for inland and inshore projects (L104), plus the list of accepted qualifications.
- DMAC (Diving Medical Advisory Committee): guidance on the medical side of professional diving, from fitness to dive through to treatment of decompression accidents.
These sources aren't entertaining, but they're the ones that settle arguments. If a video contradicts an IMCA document or an HSE code, the video is wrong. To understand how the different accreditation schemes fit together, we have a guide to certifications and a specific comparison in HSE, IMCA or ADCI.
Documentaries and film material
The essential reference material is Last Breath, the 2019 British documentary directed by Richard da Costa and Alex Parkinson. It reconstructs the 2012 accident suffered by diver Chris Lemons in the North Sea, when his umbilical was severed during a saturation operation and he was left on the seabed with only his emergency bailout bottle.
Its value is that it's built on real footage: audio from the comms, helmet and ROV camera images, and interviews with those involved. No dramatic reconstruction can replace that. In 2025 Parkinson directed a fictionalised version of the same case, with actors; it works as a film, but for understanding the trade the original documentary is far more informative.
One warning: an extraordinary accident isn't the norm. Watching Last Breath helps you understand the safety chain of a saturation operation — the standby diver, the bell, the vessel's DP, the procedures — but it doesn't describe what a typical campaign looks like. That's what the boring part is for: the procedures and the hours of waiting. If you're starting from zero, begin with what a saturation diver is.
How to tell useful content from sensationalist content
Commercial diving is a magnet for clickbait content: titles about the "most dangerous job in the world", impossible pay figures, and compilation videos of accidents with automated narration. None of that is made by people from the trade, and it shows in specific details.
- Round figures with no context: huge annual salaries with no market, rotation or actual days on board specified. The real breakdown is more complex, because base pay, depth pay and actual days on board are calculated separately.
- Imprecise terminology: confusing surface-supplied diving with saturation, or talking about "diving at 300 metres" without distinguishing working depth from the system used.
- Recycled footage: footage from other sources with no attribution, often mixing military, scientific and commercial diving in the same video.
- No mention of safety at all: if twenty minutes of video go by without anyone mentioning supervision, procedures, standby diver or decompression, it isn't a video about this trade.
- Job placement promises: any content that guarantees work once you finish a course is selling, not informing.
The reverse test is just as useful. Good content tends to be pretty unspectacular: it talks about routines, checks, paperwork, waiting on the weather. It names specific equipment and explains why each thing is done. And above all, it admits what it doesn't know.
How to build your own information diet
A scheme that works: two or three channels run by working divers for context and the human side; a community where you can ask questions and read what others say; and the documentation from IMCA, ADCI, HSE or DMAC for anything you're going to repeat as fact. That covers ninety per cent of what you need before making a decision.
Add the market side after that: who's hiring, where, and in which season. That isn't on YouTube — it's on contractors' websites and in the sector's own conversations. You can start with what we publish in the jobs section.
One final recommendation: once you've watched enough, talk to someone. A twenty-minute conversation with a diver who's been working for ten years clarifies more than fifty videos. That's exactly why the sector's communities exist.
Frequently asked questions
Can you learn commercial diving by watching YouTube?
No. Videos are useful for understanding what the trade involves, what equipment is used and what life on board is like, but training has to be in person and is regulated. No recognised accreditation scheme accepts remote training for the practical side. Think of the channels as a preliminary orientation tool, mainly useful for deciding whether this profession suits you before you invest in a course.
Which channel would you recommend for someone starting from zero?
The Salty Diver is the most sensible starting point in English, because its approach is to explain the trade, with its risks and drawbacks, rather than sell it. Working Underwater complements it well with footage filmed on the job. In Spanish, accounts like Atmosfera7 publish short pieces that are useful for getting familiar with the terminology, though short-form content doesn't replace technical documentation.
Are the pay figures that show up in videos reliable?
Rarely. They're usually presented as round annual figures with no mention of the market, the rotation scheme, the actual days worked or the year. The same diver can earn very different figures depending on whether they work in the North Sea, the Gulf of Mexico or Southeast Asia, and on how many campaigns they land. Always cross-check against several sources and be wary of figures with no context.
Where can I check the real regulations in commercial diving?
On the websites of the sector's bodies. IMCA publishes guidance and safety flashes used internationally, ADCI maintains the consensus standards for the American market, the British HSE publishes the approved codes of practice under the Diving at Work Regulations, and DMAC produces guidance on medical aspects. A good part of that documentation is freely and publicly available.
Which documentary about saturation diving is worth watching?
Last Breath, the 2019 documentary directed by Richard da Costa and Alex Parkinson, about the accident suffered by diver Chris Lemons in the North Sea in 2012. It's built from audio of the real comms and footage filmed during the operation. There's also a fictionalised version released in 2025, but the original documentary is considerably more informative about how the trade works.
Published 18 August 2026 · By Arthur More, professional saturation diver
Photo: PiktourUK · CC BY via Openverse