I visited Carlisle Castle on a weekday in March, which meant my sister and I were the only visitors. Apparently, it's not a very popular time of the year with tourists. When you first arrive at the Castle you go into the gift shop and pay for your admission, then you go up some stairs and start your self guided tour. The fact that we were the only people there was great because we got to take our time and really see the castle. The buildings have all been very well-maintained and they're also well-signed so you know what you're looking at and what the area/building was used for. There are some interesting historical displays throughout the castle, I think the history nuts would find them more amusing then I did because they were pretty detailed. My sister and I spent well over an hour here, so if you come in a colder month like we did dress for the weather because even though you're inside it's not heated and you get a real idea of how cold and drafty a castle can be.
Another interesting tidbit, there are active military buildings on the grounds of the castle so there was a random tank parked in a stable area of the castle, which was pretty neat. read more