The video shows a man in a wetsuit swimming underwater with a snorkel and mask. He is swimming near a large manatee, which is also underwater. The manatee is seen swimming around and the man is looking at it. The water is clear and blue, and the manatee is a grayish color. The man is wearing a black wetsuit and the snorkel is black with a silver mouthpiece. The manatee has a large body and a flat face, with two small flippers on its sides.