The video shows a large body of water with a fish swimming in it. The water is clear and blue, and the fish is visible through the water. The fish is swimming around in the water, and the camera follows its movements. The fish appears to be alone in the water, and there are no other visible creatures or objects in the video. The water is calm, and there are no waves or ripples, except for the ones created by the fish's movements. The fish is the only focus of the video, and there is no other action or activity taking place.