Cardiff Bay is a vibrant waterfront development situated in the south of Cardiff, Wales, United Kingdom. Once a bustling coal port in the 19th and early 20th centuries, it has undergone extensive regeneration since the late 20th century, transforming it into a popular cultural and leisure district. The Bay is home to a number of iconic buildings, including the Senedd, which is the Welsh Parliament building, and the Wales Millennium Centre, a performing arts venue that hosts opera, ballet, and musicals. The area also features Mermaid Quay, a complex with a variety of restaurants, cafes, and shops, providing a lively atmosphere against the scenic backdrop of the waterside. The Bay offers a mix of entertainment and leisure activities, including boat tours, the Cardiff Bay Barrage, and the International White Water Centre for adventure sports enthusiasts. The redevelopment has also emphasized open spaces and public artworks, catering to visitors and locals who frequent the area for walking and cycling along the picturesque trails around the Bay.