The video shows a large fish swimming in a body of water. The fish has a red body and a long tail. It is swimming near the bottom of the water, which is filled with rocks and other debris. The water is clear, and sunlight is shining through, creating a beautiful underwater scene. The fish moves gracefully through the water, its fins and tail gently propelling it forward. The camera follows the fish as it swims, capturing its movements and the surrounding environment.