The video shows a person swimming underwater in the ocean, accompanied by a dolphin. The person is wearing a black swimsuit and flippers, while the dolphin is grey with a white underbelly. The water is a deep blue color, and the sunlight is shining through the surface, creating a beautiful underwater scene. The person and the dolphin are moving gracefully through the water, with the dolphin swimming alongside the person and occasionally swimming in front of them. The person appears to be enjoying the experience, as they are smiling and looking around at the surrounding ocean environment.