Chile and Peru concentrate demand for professional diving built around aquaculture, ports and the fishing industry, not offshore oil. They're surface-supplied diving markets, with their own national regulation and with cold-water, open-sea conditions that shape day-to-day work.
When people think of Latin America and commercial diving they usually think of Mexico and Brazil, the two markets with offshore oil and real demand for saturation diving. Chile and Peru work differently: here underwater work exists in volume, but it's tied to aquaculture, ports, fishing and coastal industry.
That difference changes everything. It changes the dominant technique, which is surface-supplied diving at moderate depths. It changes the client profile, which is local and recurring rather than a large international operator. And it changes the career model: there's no ladder up to saturation, there's specialisation in underwater civil and industrial work.
One thing is worth saying before going into detail: regulation of professional diving is a national matter and changes over time. What follows describes how the market is structured, not the specific requirements you'll be asked to meet. For that you need to go to the country's maritime authority and check the standard in force at the time you need it.
Chile: aquaculture calls the shots
Southern Chile is home to one of the largest salmon farming industries in the world, spread across farming sites along the coast and channels of the southern regions. That industry generates continuous demand for underwater work that doesn't look like a construction job: it's recurring maintenance, at many sites at once, all year round.
Typical work includes net inspection and repair of tears, checking mooring lines and their components, removing dead stock, cleaning structures and supporting cage operations. It's repetitive work, usually at moderate depths but with a very high diving frequency, and that's exactly where its main problem lies.
Safety in this segment has for years been a matter of public debate in Chile, with pressure from workers and from the authorities to tighten and enforce working conditions. The practical consequence for anyone approaching the sector is that it's worth scrutinising how a given company operates: what equipment it uses, how it plans dives and timings, whether a chamber is available and how it manages standby cover. Those are legitimate questions, and a serious company answers them without getting defensive. You can see how the niche is covered more generally in the article on commercial diving in aquaculture.
Alongside aquaculture, Chile has a second leg: ports and terminals along a very long coastline, mining with maritime shipments, and associated marine works. There the work is more like port diving in any country, with structure inspection, berth maintenance and support for construction work.
Peru: fishing, ports and coastal industry
Peru has one of the highest-volume fishing sectors on the planet, built around industrial fishing and processing plants on the coast. That generates demand for underwater maintenance of very specific infrastructure: outfalls, intake and discharge pipes, buoys and moorings at the plants, and hulls across a large fleet.
The other pole is port work. Callao is the major hub, but there are terminals spread along the coast, including bulk and hydrocarbon terminals with single-buoy moorings that require periodic inspection. The country also has hydrocarbon activity in the northwest, with coastal, shallow-water installations maintained with conventional diving, not saturation.
There's also a reality that can't be ignored when describing the Peruvian market: a significant part of the diving done along the coast is artisanal extractive diving, not regulated commercial diving. These are different worlds, with different equipment and standards, and lumping them together when talking about job opportunities would be misleading. The professional diving accessed through qualification and contract is with the service companies working for ports, plants and shipowners.
Which authority regulates it, and what that means for a foreigner
In both countries the national maritime authority regulates professional diving: in Chile, the Dirección General del Territorio Marítimo y de Marina Mercante, and in Peru, the Dirección General de Capitanías y Guardacostas. Both keep registers of professional divers and set the categories and conditions under which people can work.
The practical consequence is that a foreign qualification doesn't qualify you on its own. Even with a recognised international certification, working regularly in either country requires a recognition or registration process with the relevant authority, on top of the immigration and labour side. That process is the first real filter, and it's where it's worth investing time before sending out CVs.
Medical fitness is the second filter. Both systems require a specific professional-diving medical, valid for a limited time and with their own criteria. If you're coming from abroad, expect to repeat it locally even if you have a current one from your own country.
Water conditions: cold and open sea
The Humboldt Current runs along much of this coast and keeps the water notably cold for the latitude, as well as highly productive. For the diver that means two things. First, serious thermal protection as the norm, not the exception; thermal management limits the useful length of a dive more than the air supply does.
The second is exposure. Many of the farming sites, terminals and mooring points are in open sea or in channels with current, with no real shelter. Pacific groundswell reaches this coast with real energy, which makes the operating window depend on sea state far more than it would in an enclosed harbour. Planning here means planning around the weather forecast.
How work is contracted and what kind of company you work with
The business fabric of both countries is made up mainly of small and medium-sized underwater services companies, working on contract for fish farmers, port terminals, shipowners and industrial plants. It isn't a market of large international contractors running month-long campaigns, but one of recurring services billed per call-out or under an annual maintenance contract.
For the professional that cuts both ways. The good side is that the entry point is more accessible than offshore: there are more companies, more turnover and fewer agency filters. The bad side is that stability depends on each company's order book, and conditions vary a lot from one to another within the same country.
Self-employed workers billing by the day work alongside employees on payroll, with significant differences in cover and continuity. Before deciding which way in to take, it's worth understanding what each arrangement means for insurance, contributions and who's liable if there's an accident. It's a decision better made with information than on the fly.
What makes the work here different from Europe
The first difference is geographic spread. Working in aquaculture in southern Chile or on the Peruvian coast means long travel, accommodation in remote areas and the logistics of a country with thousands of kilometres of coastline. Travel time is part of the job, and it's worth making sure it's also part of what gets agreed in the contract.
The second is the nature of the client. A fish farmer or a fishing plant doesn't have a technical department the size of an oil operator's, so the diver or supervisor takes on more responsibility for deciding how the work gets done. That gives autonomy, and it also means you need your own judgement to say no when conditions aren't right.
The third is the exposure to Pacific swell already mentioned, which turns weather planning into a daily routine rather than a formality. Anyone coming from work in sheltered basins will notice the change within the first week.
It's also worth understanding the calendar. In aquaculture, work is spread across the whole production cycle, with peaks tied to stocking, harvests and net changes. In ports and heavy industry, by contrast, much of the workload is concentrated in scheduled maintenance shutdowns. Knowing which segment you're in determines whether your year is one of steady work or intense campaigns separated by gaps.
Is it worth it for a professional from abroad
It depends what you're after. If you're after saturation work and North Sea rates, this isn't the place: the market for saturation diving is in other regions. If what you're after is real underwater working hours, varied industrial experience and a market with sustained local demand, Chile and Peru have plenty of volume.
The sensible path is the usual one: train at a recognised school, sort out registration with the country's maritime authority, and get in through an established company that lets you see how it works before committing. And choose carefully: in markets where cost pressure is high, the difference between companies on safety is large, and it's the first thing to assess.
Frequently asked questions
Is there saturation diving in Chile or Peru?
It isn't a saturation market. Demand in both countries is met with surface-supplied diving at moderate depths, tied to aquaculture, ports, fishing and coastal industry. Anyone looking for saturation campaigns needs to look at other regions.
Is a European certification valid for working in Chile or Peru?
Not automatically. In both countries the national maritime authority regulates professional diving and keeps its own register, so you need to go through the relevant recognition or registration process, on top of the work permit. It's worth confirming the current requirements directly with the authority before travelling.
What kind of work is there in Chilean aquaculture?
Net inspection and repair, checking mooring lines and components, removing dead stock, cleaning structures and supporting cage operations. It's recurring, high-frequency diving work, usually at moderate depths.
Is it cold water?
Yes. The Humboldt Current keeps temperatures low along much of the coast of both countries, and in southern Chile the climate adds to that. Thermal protection is a basic operational requirement and is usually the factor that limits dive duration.
What should I ask a company before accepting a job there?
What equipment it uses, how it plans dive times and rest periods, what surface standby cover there is, what emergency resources are available, and how it documents operations. These are normal questions in any market, and a serious company answers them without any trouble.
Published 6 September 2026 · By Arthur More, professional saturation diver
Photo: Phillie Casablanca · CC BY via Openverse