Let me second that, you will be made most welcome by the BFS ATCOs. I went up one day durring last summer expecting a quick tower of about 30mins aorund it but oh no, how mistaken I was. I was in there for the best part of 2 hours, and they don't just show you things but explain it to you. I had good thorough tour which was most interesting and the guys showed me everything, Then we went downstairs and Martin made us tea and after that thought it was time to leave but oh no, wrong again. He took us over to the fire station and we were shown around that aswell by a fireman and even took us for a drive in one of the Baracuda fire engines, and let us try dirving all three hundred thousand pounds (no not lbs but its value) around for a while. Very good trip and worth it, if I can get a face change soon I'll be back up there again!