The video shows a person in a purple and pink mermaid costume swimming underwater in a pool. The person is wearing a purple top and a pink tail with a mermaid fin. They are swimming gracefully and moving their arms and legs in a way that mimics the movements of a mermaid. The water is clear and blue, and the pool floor is visible. The person's hair is flowing with the water movement. At the end of the video, the person waves goodbye to the camera.