The video shows a dolphin swimming in an aquarium. The camera is positioned to look into the tank through a large window. The water is a clear, greenish-blue, and the dolphin is visible swimming close to the surface. The dolphin's skin is a light grey, and its body is sleek and streamlined. Outside the tank, there are people walking around, and a window is visible in the background. The lighting is bright, and the scene appears to be taking place during the day.