The video shows a group of sharks swimming in the ocean. The sharks are grey in color and have sharp teeth. They are swimming around a coral reef that is covered in algae and other marine life. The water is clear, and the sunlight is shining through, illuminating the sharks and the reef. The sharks are moving slowly and gracefully, and their fins are visible as they swim. The coral reef is a mix of different colors, including green, brown, and yellow. The video is shot from above, giving a clear view of the sharks and the reef.