The video shows a jellyfish with a translucent body and long tentacles. The jellyfish is seen floating in the water, with its tentacles trailing behind it. The jellyfish's body is illuminated from within, casting a glowing light that makes the creature stand out against the dark background. The jellyfish appears to be moving slowly and gracefully, with its tentacles undulating in the water. The video captures the beauty and elegance of the jellyfish as it moves through the water.