The video captures a single jellyfish as it moves through the water. The jellyfish has a translucent body with a yellowish hue and is surrounded by long, thin tentacles that trail behind it. The water is a deep blue color, and the sunlight creates a shimmering effect on the jellyfish's body. The jellyfish appears to be the only living creature in the frame, and there are no other objects or creatures visible. The jellyfish moves slowly and gracefully, with its tentacles undulating gently in the water.