@Darkest: Thanks for that. It was a bit of a challenge in a few places -- lots of long ladders to climb -- but I'd do it again.
@Bruno: Those hats would have been a challenge even without horns. I take a size 7 and they didn't have anything that big, even with the little strap at the back undone. I had to balance it on top of my head. Most of the time it flopped down the back, hanging from the strap that attached it to those track suits. (We weren't allowed to wear any of our own clothes for fear of something falling and creating problems for the traffic, or pedestrians, crossing the bridge.)