The video shows a large alligator swimming in a body of water. The alligator is moving slowly and its body is mostly submerged, with only its back and part of its tail visible above the water surface. The water appears to be shallow, with rocks and pebbles visible beneath the surface. The alligator's skin is a dark greenish-gray color, and its scales are clearly visible. There are no other animals or people in the video, and the alligator is the main focus.