This journey begins at Mizen Head in the south-west corner of Ireland. It then follows the rugged coastline past towers and lighthouses before turning inland to the world-famous Blarney Castle, where kissing a stone is said to bring luck. To the south is Cork, the second largest city in the republic, which sits at the head of one of the world's largest natural harbours. Inland and across the Knockmealdown Mountains are a remarkable group of medieval buildings and abbey on the Rock of Cashel. The journey continues south-east down the River Suir to Waterford, once the home of crystal glassmaking. Along the coast is Wexford, where a turn north towards the Wicklow Mountains leads to the final destination, at one of Ireland's most beautiful estates: Powerscourt.