Hi diane,
welcome to n. ireland, if you log on to NITB site www.discover northern ireland.com will give you a list of all caravan sites also if you go back a couple of pages on this thread and go to n.ireland caravaners and look through the posts, you will see plenty of recommendations,if there is any one in particular just ask and somebody will answer.
what part of n.i are you coming to?
regards stevie