greenery Cardiff What is Cardiff best known for? The city is the eleventh-largest in the United Kingdom. Cardiff is widely regarded as being the city with the most castles in the world. The most famous amongst these is Cardiff Castle, which has stood for nearly 2,000 years at the heart of the city. CARDIFF Things you need to know TransportClick here to get the info.Read More HotelsClick here to get the info.Read More RestaurantClick here to get the info.Read More GuideClick here to get the info.Read More Place To VisitClick here to get the info.Read More WeatherClick here to get the info.Read More For transportClick here to get the info. more info For hotelsClick here to get the info. more info For restaurantClick here to get the info. more info Place to visitClick here to get the info. more info Need a tour guide?Click here to see the list. see list The best time to visit CardiffThe best time to visit Cardiff is early June through late September when the weather is too gracious on all souls. We use images only for research purposes, not for any marketing or advertisement