Josef Craig has announced he is retiring from competitive swimming after six years at the top.
Born with cerebral palsy, Josef, who's from Jarrow, started swimming aged nine and was just fifteen when he became Britain's youngest gold medallist.
His first international medal was the gold he won in front of a 17,000-strong crowd at London 2012.
Craig was awarded an MBE for services to swimming and sport following his achievements at the London 2012 Paralympic Games.
He says receiving his MBE is his greatest achievement.
Josef is currently studying Sports Management at Northumbria University, and says he's not leaving the pool completely. He wants to coach the swimmers of the future and help them achieve similar success.