Originally Posted by
Spanish eyes
Ops you are right, that was an old photo. Thought she looked a bit young but she was up the tower again on Tuesday with another party of visitors although I don't know how many this time but the question is still valid.
The tower wasn't operational at that stage, so the number of visitors didn't matter; in the photo of the later visit you can see it was significantly less well attended. Visitors are limited, briefed not to distract & told to leave if they don't comply, it's all taken into account.