In the video, a dog is seen swimming underwater with a scuba diver. The dog is wearing a pink life jacket and is holding onto the diver's hand. The water is clear and blue, and the dog appears to be enjoying the experience. The diver is wearing a black wetsuit and is holding onto the dog's life jacket. The dog seems to be a medium-sized breed with brown fur. The diver is wearing a black oxygen tank and a mask. The dog is swimming calmly and appears to be comfortable in the water. The video captures the unique and heartwarming moment of a dog enjoying an underwater adventure with its human companion.