Buckie RNLI were called to assist the youngsters off Bow Fiddle Rock near Cullen Bay, Moray, at about 3.45pm on Saturday.

The RNLI said the strong southeasterly winds gusted to around 40 knots (46mph) at the time of the rescue.

Two girls had managed to remain on their paddleboards, but two other youngsters were struggling to keep their heads above water after they were pushed 500m east and further out to sea by the strong gusts.

The two youngsters, who had been in the water for more than 20 minutes with just wetsuits on, were pulled to safety.

The two "very cold and very relieved youngsters" were assessed and warmed up by the crew's casualty carers before being checked over by the waiting Scottish Ambulance Service team.

All four were given the all-clear and sent home.

One of the parents said: "As a family we want to express our profound gratitude to the RNLI team.

"Their swift action undoubtedly averted a tragedy, and we cannot thank them enough.

"Buckie RNLI exemplified compassion and professionalism throughout this ordeal, and we will forever be indebted to them for bringing our loved ones home safely.

"Our hope is that our story, though traumatising on many levels, will serve as a cautionary tale and prevent others from facing similar dangers. Thank you to each and everyone involved in the rescue."

The incident came as Storm Kathleen brought disruption to weekend travel across the UK and Ireland with winds of more than 70mph.

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Anne Scott, lifeboat operations manager, said: "The RNLI urges people to check the weather forecast carefully before venturing out on the water, especially when paddleboarding.

"Avoid offshore winds as you can easily be blown out to sea very quickly and offshore winds will tire you quickly when trying to return to shore.

"Always wear a personal floatation device and suitable clothing for the forecasted conditions and always carry a means of calling for help."