Drimnagh Castle was, until 1954, one of the oldest continually inhabited Castles in Ireland and is an outstanding example of an old feudal stronghold. It is the only Irish castle still to be surrounded by a flooded moat. The Castle consists of a Restored Great Hall and a medieval undercroft, a tall battlement tower with lookout posts and other separate building. One of the most attractive aspects of Drimnagh is the garden – a formal 17th century layout.