Book excerpt: This guidebook focuses on the best Irish rock climbing routes throughout the grades at the best crags, including areas and routes that haven't been documented in a modern guidebook before. Very detailed directions and maps make it easy for the first time visitor to find and climb their chosen route. There are 22 crag destinations, north and south, including Fair Head; Donegal; Dalkey Quarry; Wicklow; The Mournes; and The Burren.