They were both in high spirits as they met and mingled with hundreds of well-wishers and fans who'd turned out to meet the royal couple.
A large amount of their time was spent chatting to the crowds that lined their route.
Each year, the famous flower show sees around 20,000 people attending, who can explore hundreds of stalls and exhibits.
People at the Sandringham show faced scorching temperatures.
The UK is currently being gripped by a heatwave, with record-breaking temperatures for the country as it reached almost 39C in some parts.
While Camilla found shade under her parasol, Charles gratefully accepted the offer of a cool cloth to mop his brow.
Their day out comes just days after Duchess Camilla celebrated her 72nd birthday.