Orca, also known as Killer Whales, are infrequent visitors to Scottish waters – but their appearance has led to some close encounters.
People taking part are given training in how to spot the whale species and other marine mammals, and this year they recorded 35 sightings.
All confirmed ‘killer whale’ sightings are recorded in the Foundation’s online database.
Orca live in family units called pods (stock pic) (Image: PA)
The Foundation said in a statement: “The Sea Watch Foundation is currently celebrating its 15th year of Orca Watch across Caithness, Scotland.
“Over the last six days, there have been a total of 35 killer whales seen. During this time, volunteers are trained to survey from land and sea across north Scotland, recording any marine mammal spotted, with a focus on killer whales (also known as orca).
“All sightings recorded are inputted into a nationwide citizen science database, the largest and longest-running in the UK, if not across Europe. It is vital to continue this work, not only during Orca Watch but throughout the year, to monitor and observe cetaceans, recording numbers and behaviour.”
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To celebrate this anniversary year, the Sea Watch Foundation is holding a “Whaley Ceilidh” on Saturday 30 May at 6:30pm at the Old Mill in John o’ Groats.
A food truck will be parked outside from 5pm serving Mexican food, with an exclusive menu available from 6:30pm.
Limited tickets are available, with all funds going to support the Foundation, which relies on donations to carry out its work.
The statement added: “The Sea Watch Foundation would not continue without the support of the local community and volunteers.”