The video shows a close-up of a jellyfish. The jellyfish has a translucent body with a bell-shaped top and long, thin tentacles that are moving around. The tentacles are covered in small, round, and bumpy protrusions that are pinkish-brown in color. The jellyfish is moving slowly and gracefully in the water, with the tentacles undulating and swaying. The background is blurred, but it appears to be an underwater environment with other marine life visible in the distance.