A video of the orcas was recorded on Sunday, 29 September, and then shared across social media by the Terra Incógnita Nautical Center.

"Iberian Orcas yesterday off the coast of Comporta", reads the publication, which explains that the pair were preparing to dive when they received a warning alerting them to the presence of the orcas.

The person in charge and the photographer aborted "the planned dive to capture" the images that they considered "to be of the utmost importance to show the wonderful and magnificent beings that pass through" Portuguese waters.

"Photos of the dorsal fins were collected at the request of several organisations", for the work of several biologists, who fight for the "conservation of these animals and to try to find a solution for their interaction with sailboats".

The video, it should be noted, shows the moment when the orcas approach and even hit the hull of the boat.

Watch the video in full here: https://www.facebook.com/share/r/vsWtpwgVgiMJCEfn/