On Friday 22nd July, I completed the Yorkshire three peaks challenge, 43 km up and downhill including the walk to and from the car park! This was one of the most gruelling treks I had ever done, in very bad weather too.  As an oncologist, I know how vital the ongoing Miles4Radiotherapy initiative is in improving treatment for our patients.  Radiotherapy UK is the only charity dedicated to improving radiotherapy treatment throughout the UK. They work so that everyone in the country no matter who they are or where they live,  can have access to the best radiotherapy treatment available.A total of 1 in 2 of us will get cancer, and 1 in 4 of us will need radiotherapy at some point in our lives. Every four weeks delay in treatment reduces survival rate by 6-13% thats why Radiotherapy UK's work to ensure people receive vital treatment is critical.