The video shows a close-up of a sea creature with a brown and black mottled body, swimming in a blue pool of water. The creature has a long, slender body with a smooth texture, and it moves gracefully through the water. Its head is not visible in the video, but its body is elongated and tapers to a point at the end. The creature's movements are slow and deliberate, and it appears to be exploring its surroundings. The water is clear, and the creature's movements are the main focus of the video.