Caerphilly is a town in south Wales, at the southern end of the Rhymney Valley. Dominating an impressive 30-acre site, Caerphilly Castle is Wales' largest and Britain's second largest castle. This medieval fortress was built mainly between 1268 and 1271. The design of the castle is based on a concentric ring of walls, and also has an extensive ring of water defences and huge gatehouses. From the castle, why not enjoy a spot of shopping in the town centre with high street shops aplenty as well as local boutiques. Visit a specialist deli where you can sample some of the area’s most famous local product; Caerphilly cheese. Caerphilly is a hard, crumbly white cheese that originated in the area around the town. Caerphilly holds an annual 3-day festival entitled The Big Cheese. The event includes a wide variety of cheese stalls as well as a funfair, fireworks and a cheese race around the castle. Caerphilly also has a sculpture of a cheese!