The video features a single jellyfish with a translucent body and long, flowing tentacles. The jellyfish is seen pulsating and moving through the water, with its tentacles trailing behind it. The jellyfish's body is mostly clear, with some orange and yellow coloration visible within it. The tentacles are long and thin, with a slight glow to them. The background is dark, which makes the jellyfish stand out prominently. There are no other objects or creatures visible in the video.