Once upon a time, the Duke and Duchess of Cambridge embarked on a mission to celebrate St. David's Day, a Welsh holiday.

During the parade, they shocked onlookers by presenting leeks to the Welsh Guards.

This visit marked Prince William's first as the ceremonial Colonel of the regiment.

The Prince of Wales even showed up to salute the troops as they marched by.

The couple continued to amaze everyone by meeting with both regiment families and Australian personnel.

This event was reminiscent of Kate's annual St. Patrick's Day duty, which further added to the excitement.

The royal couple's passion for Wales stems from their early days as newlyweds and first-time parents.

Some might find it surprising that the Duke and Duchess are so dedicated to promoting Welsh culture.

Nevertheless, their visit proved that they are willing to go the extra mile to connect with people and support the causes they believe in.