The video shows a scuba diver swimming in the ocean with a large manta ray. The water is a deep blue color, and the sunlight filters through the surface, creating a beautiful underwater scene. The manta ray is black and white, with a long tail and wide wings that it uses to glide through the water. The scuba diver is wearing a wetsuit and flippers, and is seen swimming alongside the manta ray, observing its movements. The video captures the peaceful coexistence between humans and marine life.