The 2017 British Bouldering Championships, at Devonshire Green, was the showpiece of the Cliffhanger Festival, celebrating adventure sports and outdoor pursuits. Sheffield city centre was transformed into a giant playground with activities including mountain biking, skateboarding and orienteering. Hundreds of people came to watch the return to Sheffield of the British Bouldering Championships with the best climbers from around the UK competing to see who can scale the set piece walls. Simon Thake reports for Sheffield Live!