The video shows a large alligator swimming in a body of water. The alligator's body is partially submerged, and it is moving slowly through the water. The water is green and murky, and there are trees reflected on the surface. The alligator's scales are visible, and it appears to be a mature adult. There is a fence in the foreground, suggesting that the alligator is in a controlled environment, such as a zoo or wildlife park.