This packet is intended as an aid to teachers in the United Kingdom bringing groups of children to visit Yarmouth Castle (Isle of Wight). The materials are aimed at the upper junior and lower secondary school student although adaptations of information and ideas would make it more widely applicable. The packet consists of a teacher's handbook and three activities. The handbook provides information about the castle, the history of it and how it is operated. Suggestions for educational approaches for a visit are included. Two of the activities rely on observation and can only be done on site; the third activity can be done in the classroom. (EH)