The video shows a large stingray swimming in a tank. The stingray has a long, flat body with a pointed snout and a long, thin tail. It is swimming gracefully through the water, moving its fins in a smooth, gliding motion. The tank is filled with clear water, and there are rocks and coral visible in the background. The stingray is the only visible creature in the tank, and it appears to be calmly exploring its surroundings.