The video shows a large alligator swimming in a river. The alligator is seen moving its head and tail as it navigates through the water. The river is surrounded by greenery, and the water appears to be moving at a moderate pace. The alligator's scales are a dark green color, and it has a long, pointed snout. The video captures the alligator's movements as it swims through the river, providing a close-up view of the animal in its natural habitat.