Miss Hurford jumped into the water.
"I grabbed him from behind. He was quite heavy because he was fully clothed, with a helmet, jacket, camo pants and high-top shoes.
"I didn't realise how swift the current was. I was thinking I've got to be quick to get him out or we're both going to go.
"Another woman was on the rocks. She grabbed him off me. She was struggling to lift him up.
"It took the three of us to pull him out."
She remembered seeing the boy's head bobbing in the water.
"He was kicking himself to try and keep up, but I could tell he was struggling. He probably bobbed up and down four or five times before I managed to get in the water. He was going down so only his helmet was visible."
Miss Hurford said she, the other woman and the boy's mother started stripping the wet clothes off him to help him warm up.
"I helped the mum, who was very distressed, and the boy who, by then, had realised he had a close call.
"He did seem okay, he was quite responsive. I don't think he took on too much water."
The other woman at the scene managed to get the boy's bike out of the water, even though the mother was telling her not to worry about it.
Miss Hurford gave the mum a hug and was thanked profusely.
The mum called her partner and the duo were quickly collected. Miss Hurford, also cold and wet, moved on without thinking of grabbing any contact details.
She is now hoping to track down the mother and son to see how they were doing and give them both a big hug.
All she knew was that the boy was "a cute wee guy" called Charlie, he had dark brown hair and was aged about 5 or 6.
"I'm so glad we managed to get him out. If it was just him and his mum, I don't think there would have been such a good outcome.
"At the end of the day, anyone would have done it."