Orca encounters: what yacht crews should know.

The essential distinction

Spain and Portugal do not give the same instruction.

Interactions remain concentrated around parts of the Atlantic Iberian coast and nearby approaches. They are dynamic, and official advice can change as authorities review new evidence.

This guide is a passage-planning aid, not a replacement for Notices to Mariners, coastguard instructions, current charts or the skipper’s judgement. Check the original national guidance again immediately before sailing.

Before acting: establish which national waters you are in, use the current official procedure for that jurisdiction and follow any direct instruction from the maritime authorities.

Where and when

Not only a Strait of Gibraltar question.

Spain’s current campaign covers the Gulf of Cádiz and Strait, the Galician coast and the Cantabrian coast—part of the wider Biscay picture. Its advice is to take particular care from April to October, when Atlantic presence is more likely; that is a season to prepare for, not a promise that activity will follow one fixed route or timetable.

The Iberian Orca Working Group’s 2021 study of reported interactions since 2020 was weighted towards sailing yachts: 72% monohulls and 14% catamarans, alongside 6% motorboats, 5% semi-rigids and 3% fishing vessels. It recorded spade rudders in 67% of cases, semi-supported rudders in 22% and hinged rudders in 1%; approximately 10% of the recorded craft used an outboard rather than an independent rudder.

Those figures are reports of interactions, not a probability for any individual boat: the number and type of vessels actually passing through each area also matters. A modern sailing yacht with a spade rudder deserves thoughtful preparation, but no hull type should be treated as exempt.

Before departure

Brief the response before anyone needs it.

1. Check the current protocol

   Confirm the Spanish or Portuguese instructions for the waters on the intended route.

2. Review recent reports

   Use mapped activity as context, while recognising that yesterday’s positions do not predict today’s.

3. Identify safe inshore options

   Use the chart, forecast, swell, tide, traffic, draft and possible shelter—not depth alone.

4. Give everyone a role

   Decide who will steer, monitor position, operate the VHF and record the event. Confirm lifejackets, liferaft, grab bag, current position and the basics before a higher-risk leg—not because an incident is expected, but because a calm response depends on everyone knowing what to do.

5. Clear the working areas

   Secure loose equipment and keep the aft deck, steering system and exposed sides clear.

6. Keep reporting details ready

   Have VHF Channel 16, position information and the relevant national reporting details immediately available.

Shallow water

A useful planning option—not a guarantee.

Cruising Association observations have found fewer reported interactions close to shore and in water under about 20 metres. That is useful context, and Spanish official guidance also directs vessels towards coastal or shallower water during an interaction when navigation remains safe.

It does not make an inshore route automatically safe. Grounding risk, rocks, fishing gear, surf, swell, tide, lee shores, traffic and the consequences of losing steering all matter. The skipper still needs a charted, weather-appropriate route with enough sea room for the actual yacht.

Pingers and deterrents

Not a proven shortcut.

Do not treat an acoustic pinger as protection. The evidence shared by sailing organisations remains mixed and anecdotal; no reliable, legal deterrent measure has been proven to prevent Iberian-orca interactions with yachts.

There are also legal and wildlife-welfare issues to consider. Before carrying or using any acoustic device, check the current rules for the waters you are in. It is never a substitute for current reports, a practical route plan, a proper lookout and clear refuge options.

How we plan this coast

Build in places to stop, rather than a route you have to force.

On Atlantic-side delivery runs between Biscay and Gibraltar, Red Sky works from a chain of weather-aware decisions—not one fixed inshore track. Vigo or Figueira da Foz, Cascais, Sines, the Algarve, Huelva and Gibraltar Bay can all be useful points to reassess the forecast, daylight, crew and the yacht.

That may mean choosing a night stop or refuge before it is needed: for example the Berlengas or Peniche area, Cascais or the Tagus, Sines, an Algarve harbour, or Huelva. The actual choice still comes from the current chart, pilotage information, weather, swell, tide, yacht draft and local conditions.

From Sines towards the Algarve, the Bay of Cádiz and Gibraltar, daylight can materially improve the lookout for fishing gear. Pots can be difficult to spot and the consequences of a fouled propeller are serious. A daylight leg is not a rule by itself, but it is a deliberate option when visibility, forecast and timing support it.

That matters around the Bay of Cádiz and Barbate in particular. Shallow water and fishing activity do not create a clear lane: pots and nets may extend well offshore. Charted gear is useful planning information, but it may not show every current deployment. Check current notices and local conditions, keep a proper lookout, and do not turn a blog’s general route into an instruction to pass a particular net on one side or the other.

Red Sky’s use of the 20-metre contour begins only after rounding Sagres onto the Algarve’s south coast. From there towards Huelva and Gibraltar, we try to remain around that contour where depth, sea state, fishing gear, traffic and room to manoeuvre make it sensible. We do not apply it up Portugal’s exposed west coast: swell, the scarcity of suitable refuges and the consequences of losing steering close to shore can make that the more dangerous choice. Even along the southern coast, the contour is a planning consideration—not a rule or a guaranteed safe lane. If the shallow-water option is uncomfortable or unsafe for the yacht, wait for a more suitable window or choose a different safe plan.

Before committing to a longer leg, we identify usable anchorages, marinas and, where possible, haul-out or lift-out facilities. For a larger yacht especially, knowing the practical recovery options matters as much as choosing the next waypoint.

For a yacht with the speed and endurance to complete the legs in the available daylight, a typical Red Sky pattern south from Cascais is Cascais to Sines; Sines to Lagos or the Portimão area; Lagos to Huelva; then Huelva to Gibraltar Bay. The two middle legs are each roughly 80 nautical miles. These are planning examples rather than a fixed itinerary: the actual stop and departure time depend on the yacht, forecast, sea state, visibility and the daylight available.

This coastal pattern adds miles compared with cutting directly across the Bay of Cádiz. Red Sky accepts that trade-off because daylight improves the lookout for fishing pots and recent interaction reports can be considered before each leg. The Huelva–Gibraltar section is therefore planned as a daylight passage where the yacht’s speed and conditions make that realistic.

Red Sky’s skipper has repeatedly made the Atlantic Portugal–Algarve–Huelva–Gibraltar run without an interaction. The working approach has been daylight hops where practical, a strong lookout, current weather and sighting information, planned refuge options, and no unnecessary exposure to pots or other gear. It is a personal operating preference that has worked for us—not evidence of a guaranteed route or outcome.

During and after an encounter

Navigate first. Report clearly.

1. Make the yacht safe

   Follow the current national protocol, control crew movement and avoid improvised actions that could injure people or animals.

2. Call the authorities

   Use VHF Channel 16 and give the vessel name, position, nature of the interaction, condition of the yacht and assistance required.

3. Keep a useful record

   Note the time, coordinates, depth, course, speed, weather, number of animals, duration, response used and any damage. Submit the relevant national report afterwards.

Radio calls

Match the call to the facts.

An orca sighting or interaction does not automatically make a Mayday. Use the current local procedure and state clear facts: position, time, yacht, what has happened, condition, damage, whether steering and propulsion are available, and what assistance is needed.

1. Sécurité

   Use a safety message when a navigational warning is appropriate, following local procedure or maritime-authority instruction. A factual location report can help authorities build a live picture for other vessels.

2. Pan-Pan

   Use an urgency call for a serious concern about vessel safety that is not grave and imminent danger requiring immediate assistance. The right call depends on the yacht’s condition, location, weather and remaining control.

3. Mayday

   Use a distress call only where there is grave and imminent danger and immediate assistance is required. A loss of rudder or propulsion may be Pan-Pan or Mayday depending on the actual situation—not a label decided in advance.

Do not rely on a generic “all stations” script. On this coast, follow the relevant national instruction and the direction of the maritime authority on Channel 16.

Live reports and local intelligence

Use current reports as one input, not a routing system.

Before departure and while underway, current reports can help build a picture of recent activity. They do not replace a chart, forecast, navigational warnings, a proper lookout or the instructions of the maritime authorities.

• GT Orcas — the working group’s app and map for sharing and viewing current sighting and interaction reports.
• Portuguese Hydrographic Institute: Orca reporting portal — current geospatial reports for Portugal, including the mobile Orca Report option.
• Orcas.pt Telegram directory — current links to the Orcas Locations and Orcas Discussions channels for recent reports and discussion.

Telegram or WhatsApp groups can be useful for a sense of what has been seen recently and to compare notes with other crews. Treat them as informal and unverified: reports can be incomplete, delayed or wrong. Use the current directory rather than relying on an old invite link, and keep the yacht’s own plan based on official guidance and the actual conditions.

The practical answer

Know the waters, plan the route and brief the response.

1. Before departure

   Confirm whether the leg is in Spanish or Portuguese waters, check that country’s current protocol and review official notices, weather and recent reports.

2. For the route

   Use daylight, visibility, safe inshore options and realistic refuges where they help the actual yacht. Do not turn the 20-metre contour—or any reported sighting—into a guaranteed safe lane.

3. If an interaction occurs

   Follow the national instruction, keep people clear of the steering gear, navigate first and give the maritime authority clear facts on VHF Channel 16.

4. Keep the limits clear

   Pingers are not proven protection, informal reports are not a routing system, and previous passages without an interaction do not guarantee the next one.

The resolution: there is no single avoidance trick. The strongest plan combines the correct national procedure, a weather-appropriate route, a properly briefed crew and room to change the plan before conditions force the decision.