In the video, a person is seen swimming underwater with a large whale. The person is wearing a scuba suit and is holding onto the whale's fin. The whale appears to be calm and is swimming slowly. The water is clear, and the sunlight is shining through, creating a beautiful underwater scene. The person seems to be enjoying the experience, and the whale seems to be at ease with the human presence. The video captures the beauty of the underwater world and the majesty of the whale.