The video shows a group of dolphins swimming underwater. The water is clear and the dolphins are swimming gracefully. The dolphins are of different sizes and colors, ranging from light grey to dark grey. They are swimming in a group, with some dolphins swimming closer to the camera and others further away. The seabed is visible and covered with green seaweed. The dolphins are moving smoothly and effortlessly through the water, with their fins and tails propelling them forward. The video captures the beauty and grace of these marine creatures in their natural habitat.