The video shows a large group of fish swimming in the ocean. The fish are silver in color and have a streamlined shape. They are swimming in a coordinated manner, creating a mesmerizing effect. The water is a deep blue color, and the light from above the water's surface creates a shimmering effect on the fish. There is a scuba diver visible in the background, wearing a black wetsuit and carrying a yellow oxygen tank. The diver is observing the fish and appears to be in awe of the spectacle.