Their first public engagement sees them visit Pontypridd Market to meet local business owners and try their hand at making one of the country's most celebrated exports - Welsh cakes.
Kate, 43, opted for a longline red coat, layered over a checked skirt and black boots, while carrying a brown handbag] The couple will tour the food hall during which they will visit The Welsh Cake Shop which has been serving the local population for more than 25 years.
The Prince and Princess of Wales are visiting Pontypridd ahead of official events to mark the country's patron saint - and all things Welsh - on Saturday, March 1.
The Prince and Princess of Wales have arrived in Cardiff for a day of engagements in Wales ahead of St David's Day on March 1.
William and Kate have arrived on their first joint engagement in Wales for more than a year to mark the nation's annual celebration of St David's Day.