The video shows a single jellyfish swimming in the ocean. The jellyfish has a translucent body and is seen pulsating as it moves through the water. The ocean is a deep blue color, and the jellyfish is the only visible creature in the video. The jellyfish appears to be moving slowly and gracefully, with its tentacles trailing behind it. There are no other objects or creatures visible in the video, and the focus is solely on the jellyfish and its movements.