Is that really a ladder going up the side and over the top?
I think (after trying to work out from which direction the photo was taken) that the 'ladder' you see going up the stalk is in fact the track for the now fitted external lift.
I believe there is a ladder on the top; we have an 'escape hatch' fitted in the VCR ceiling for us to get on top of the tower for helicopter rescue. If that ever happens, I just hope the cloud base is above 300ft! 