Situated in one of the few remaining of Dalkey's seven castles, this interesting place boasts an impressive exhibition on the history of the Dalkey area, and you can tour the remains of the castle and watch a video. Open Monday-Friday 9:30 am-5 pm; Saturday, Sunday and holidays 11 am-5 pm. Free. Castle Street, Co. Dalkey, Dublin. Phone 01-285-8366. http://www.dalkeycastle.com.