Mary looked stunning in an electric blue gown.
The crown princess paired her look with a blue clutch, purple shoes and purple earrings.
Frederik looked dapper in a dark navy suit.
Prince Frederik has been taking this slow since his back surgery earlier this year, leaving Mary to make most of her royal appearances alone.
Despite his current health ailments, the royal pair appeared to be in good spirits.
Mary and Fred's appearance also comes after enjoying a summer break with her family.
