And after the red carpet, Kendall didn't change into something more casual and comfy for a yacht ride. The 19-year-old kept on the couture gown and shared dreamy photos on Instagram of her lounging at sea in the south of France.
During her time at the starry festival, she also made time to catch up with her BFF Cara Delevingne, who's also in attendance. The ladies enjoyed some beachside lounging together at the Hotel Martinez before hitting the party circuit.
We're pretty sure these two are going to have the best Memorial Day Weekend ever!