Once we got to Rochester, the castle was well signposted, although we did take a slightly long way around due to following the road signs, so we found it without any problems. We wondered around there for probably several hours, listening to the strange audio tour things that look like a cross between a telephone and a cricket bat, and, in Nat's case, taking about three million photos.
After that, we went off to find something to eat, and then came back to the cathedral, which is next door to the castle (one of the fun things about being in the castle was being able to look down on it) which was something like the castle must have been like before it fell down. It also had quite possibly the most gorgeous organ ever.
After that we headed back to the train station, but passed through a few charity shops along the way, where I acquired a cd and three books (one of which, Contact, actually might be good) for a princely combined sum of £2.15.
All in all, 'twas a grand day out.
Oh, and Nat assures me that during the course of the day I received three entirely independant wolf whistles, all of which I was completely oblivious to (I'm good at oblivious). I feel that this may have been something to do with being dressed something like an eight year old lesbian (hair in pink/black bunches, black tshirt, pink short dungarees (£1 from ebay)) might have had something to do with this. I find it ammusing anyway.