The video shows a group of dolphins swimming in the ocean. The dolphins are grey in color and have smooth skin. They are swimming in a coordinated manner, with some dolphins swimming in front and others following behind. The water is clear, and the sunlight is shining through, creating a beautiful underwater scene. The dolphins appear to be in their natural habitat, and there are no visible signs of human interference. The video captures the grace and beauty of these marine mammals as they navigate through the water.