The Vale of Glamorgan, often referred to as The Vale, (Welsh:Bro Morgannwg [ˈbroː mɔrˈɡanʊɡ]) is a county borough in Wales. With an economy based largely on agriculture and chemicals, it is the southernmost unitary authority in Wales. Attractions include Barry Island Pleasure Park (known for the BBC sitcom, Gavin & Stacey), the Barry Tourist Railway, Porthkerry Park, St Donat's Castle, Cosmeston Lakes Country Park and Cosmeston Medieval Village. It is also the location of Atlantic College, one of the United World Colleges.