The 13 Bridges Challenge is a 10-mile walk that follows a route across thirteen bridges in London. Starting at the Tower of London, the 13 Bridges Challenge takes in numerous London sights and landmarks, all in support of our Armed Forces community. Join 1,000 people in celebrating Armed Forces Day 2024 and raise vital funds for the Armed Forces community. You can take part in the physical event in London or take part virtually in your local area.