A 15-year-old boy is recovering in hospital following an abseiling accident in the NSW Blue Mountains on Saturday morning. The teenager was airlifted to the Children's Hospital at Westmead, in Sydney's west, after he fell off a 40 metre cliff and suffered serious leg injuries. A spokesperson from NSW Ambulance told Daily Mail Australia the high school student fell at Mitchell's Ridge lookout, in Mount Victoria, just before 11am. Blue Mountains Police Area Command were reportedly first on the scene to to attend to the injured youngster. Police and rescue crew on the scene (pictured) after a b...