Lewis Barber decided to sign up for the challenge to mark his 21st Birthday earlier this year. His mother, Sam Barber, also from Redditch, suffers with sight loss and has been partnered with her guide dog Harrison, a black Labrador cross Golden Retriever, for four years. Lewis said: “I’ve seen first-hand what a guide dog can do to change someone’s life for the better. “My mum suffers with sight loss and the impact that her guide dog Harrison has made since they were matched four years ago is indescribable. “Her confidence is so much better and that makes me feel so much be...