A person with long, dark hair is swimming on their back in clear, green-tinted water. They are wearing a dark-colored bikini, visible through the transparent water. The person is paddling gently with their arms and kicking their feet, creating small ripples on the surface. Bright sunlight reflects off the water, creating sparkling highlights. The setting appears to be a natural body of water outdoors, under a sunny sky. The person's posture suggests a relaxed and enjoyable activity.