The video shows a jellyfish swimming in the ocean. The jellyfish has a translucent body with a bell-shaped top and trailing tentacles. The jellyfish is seen pulsating its bell, propelling itself through the water. The tentacles are long and thin, with small oral arms at the end. The jellyfish's body is mostly clear, with some yellow and orange spots. The ocean water is a deep blue color, and there are no other visible creatures or objects in the video.