Carrigafoyle Castle, County Kerry
High above the Shannon estuary, just west of Ballylongford, this 15th century castle belonged to the O’Connor clan, who ruled much of northern Kerry. The English besieged or sacked it repeatedly but the body blow was delivered in 1649 by Cromwellian forces. The ruins include a keep and walled courtyard, with romantic views of the estuary from the top of the tower.
Carrigafoyle Castle is a real hidden gem and worth a visit on your tours of Ireland.