I buy a joint pass for both St Andrew's Cathedral and St Andrew's Castle. This includes a token with a slotted face to climb St Rune's Tower. One person can barely squeeze through the turnstile. I wish I had a shot of me going through it. The staircase was just as tight. It is over 150 stairs to climb. On the way down, I bump into a mother and her kids coming up. I have to back up to a wide landing so they can pass.