The video shows a person swimming in the ocean with a large shark swimming nearby. The shark is swimming in the same direction as the person, and it's very close to them. The water is clear and blue, and the sunlight is shining through the surface, creating a beautiful underwater scene. The person appears to be calm and unafraid, despite the presence of the shark. The shark is moving slowly and gracefully, and its size is impressive compared to the person. The video captures the beauty and danger of the ocean, and the interaction between humans and wildlife.