Albie-Junior Thomas had his left foot amputated when he was 15 months old after he was born with a condition which made it deformed and his leg shorter.
But it hasn't stopped him - and he's been charging around on his prosthetic since he was two, with dreams of one day competing in the Paralympics.
And on Sunday - in the wake of Storm Arwen - he scaled 3,560ft to the peak of highest mountain in Wales on Sunday.
Accompanied by dad Daniel, 36, the little lad chose the harder Pyg track to the summit, and made it up and down in less than five hours - beating the average adult.
Daniel, from Holywell, Wales, said: "Whatever Albie wants to do, we will do it.
"I have huge plans for me and Albie - we're going to travel the world together and go trekking and running around the world.
"He's fitter and stronger than other boys his age. He shows them what to do.
"As long as Albie wants to go to the Paralympics, I am going to help him do it."
Filmed on 28th November 2021