The video shows a scuba diver underwater, surrounded by a large school of fish. The diver is wearing a black wetsuit, a scuba mask, and a yellow oxygen tube. The fish are yellow and black in color, and they are swimming in all directions around the diver. The water is clear, and the sandy ocean floor is visible in the background. The diver appears to be calmly observing the fish, and there is no visible interaction between the diver and the fish.