The video shows a scuba diver swimming in the ocean, accompanied by a large manta ray. The diver is wearing a black wetsuit and is equipped with a scuba tank and flippers. The manta ray is dark in color with a white underbelly and is swimming gracefully in the water. The ocean is a deep blue color, and there are several small fish swimming around the diver and the manta ray. The video captures the peaceful interaction between the diver and the manta ray as they swim together in the ocean.