A boy raced against time and tide to save his stepfather and little sister from drowning.

Cut off by a racing incoming tide, with their backs against a sheer 250ft wall of cliffs, escape would have been impossible for 42-year-old Stephen Callander and his step-daughter, six-year-old Danielle Barker, had it not been for the bravery of Mark Barker.

The slightly built 11-year-old plunged into the icy cold North Sea for a 200-metre swim to the shore for help.

The plucky youngster swam sideways against the current, crossing three deep and treacherous gullies capable of washing an adult out to sea.

He struggled ashore near the Ship Inn at Saltburn and asked a couple walking their dog to get help.

They called Redcar Lifeboat Station three-and-a half miles away.

Lifeboat spokesman Dave Cammish said: "But for the heroic actions of this little lad, no one would have known of the family's plight.

"This little girl and their step-father were in great jeopardy. It was pretty tight. There was not a lot of time left. Those cliffs are sheer for 250ft and offer no escape.

"It was fantastic what the little lad was able to do in alerting the emergency services. The RNLI are delighted that his heroism is being recognised and would want to be associated with congratulating him."

Mark, now 12, from South Bank, near Middlesbrough, was this week presented with a certificate on vellum from the Royal Humane Society - the highest bravery award the society can make and an award from the Association of Chief Police Officers, which included a cheque for £150.

The presentations were made by Cleveland Chief Constable Sean Price who said he felt honoured to be able to recognise his bravery.

Mark's mum, Andrea said: "I'm very proud of him. It was a terrifying ordeal for them all.

"Mark couldn't see the rescue and he was panicking until the lifeboat brought them out."

Recalling his swim against the current, Mark said: "I just tried to get help for them. It was hard."

He is going to share the money with his sister and plans to buy a pair of trainers with his share.