My alternative caption for this image was "This exit doesn't have a staircase!" Joking apart I had never considered that the maintenance of Portsmouth's Emirates Spinnaker Tower would require any one to be suspended on a rope near to the top of the tower. I am uncertain as to the type of work being carried out when the image was captured in April 2007. The height above ground of the climber can be judged to a certain extent from the adjacent (IMG 2120) image.