Welcome to Narrow Water Castle’s official website! For the perfect wedding at an Irish Castle come to Narrow Water Situated in the stunning countryside of County Down, Northern Ireland, this historic building makes an exquisite and convenient setting, be it for weddings, a film location, a conference or even a private barbecue. Throughout this site you can view the splendour of the castle and learn more about the services we provide. We hope it inspires you to come and visit.