The video shows a scuba diver underwater, surrounded by a large school of fish. The diver is wearing a black wetsuit and is holding a camera. The fish are swimming around the diver, creating a dynamic and lively scene. The water is clear and blue, and the light from above the water's surface is visible, illuminating the scene. The fish are of various sizes and colors, with some appearing to be yellow and others silver. The diver seems to be observing the fish and possibly filming them.