The is the incredible moment a Scots couple had a close encounter with a pod of orcas off the coast of a village in Shetland.

Stunning footage captures the moment the couple were surrounded by the killer whales, who then swam right underneath their tiny boat.

Nick McCaffrey and Kelly Nicol were out on their small 4m Avon Rib boat when the orcas suddenly appeared.

They described the incident as “incredible but terrifying” due to the huge size of the animals.

The whales approached the couple's small boat

Kelly said: “There was a moment of thinking this is incredible but a bit too close but they are so beautiful."

Nick said: “It’s intimidating. The shear size of them blows you away.

“We never felt like they would attack us but it’s still terrifying. You realise how little control you have in the situation.”

He added: “I think you are irrelevant to them. I would urge anyone on a boat there to be extremely careful, you are insignificant to them and you just know if they did not want you there you would know pretty quickly.”

The video captures an orca swim right underneath them as the choppy waters rock the boat from side to side.

Kelly said: “Thankfully they were quite happy and didn’t seem to care.

“I was quite glad it was an adolescent who went under the boat.”

Sightings of the animals from their village of Aith in Shetland is more common in the summer months but they can sometimes be spotted in the winter.

Nick said: “We are quite lucky in Shetland. We can see them throughout the year.

“I think because there’s more people visiting, the days are lighter and longer and the weather is better that we often see them more in the summer months.

“We did see them in January but not this close.”

Nick is a professional drone operator and photographer and shares his incredible images on Instagram, you can follow him @southspearmedia.

Kelly also shares stunning photography from across Shetland on her Instagram page @pinicol.