In the morning, we reach Cardiff, the capital of Wales, just an hour from Bristol. Cardiff is the country's eleventh-largest city by population and is located on Bristol Bay at the mouth of the River Taff, in southeast Wales and near the border with England. As Wales's main commercial center, Cardiff is the base for most of its cultural institutions and is the seat of the Welsh Parliament. It is part of the Eurocities network of major European cities. Cardiff is the city of the historic county of Glamorgan and, since 1974, of South Glamorgan. A small city until the early 19th century, Cardiff owes its importance to the region's industrialization, which helped it become a major port for coal transportation. Cardiff became a city in 1905 and was proclaimed the capital of Wales in 1955. In the 2011 census, the population was 346,090. The Cardiff urban area covers a slightly larger area than the county, also including the towns of Dinas Powys and Penarth, and has seen significant development since the 1980s. A new area on the Cardiff Bay waterfront is home to the Senedd building, home to the Welsh Parliament, and the Wales Millennium Centre arts complex. In the late afternoon, return to Bristol for dinner. Overnight.