The video shows a turtle swimming in a tank of water. The turtle is seen moving around the tank, with its head and limbs visible above the water surface. The tank appears to be indoors, with a light source shining from above, creating a reflection on the water's surface. The turtle's shell is dark and textured, and it has a long tail that trails behind it as it swims. The water is clear, and there are no other visible objects or creatures in the tank.