There are four individuals in the image. They are wearing life jackets, which suggests they are in a water-related activity or environment. The person on the left is partially visible, wearing a red life jacket. The second individual, standing slightly behind the first, is also wearing a red life jacket. The third individual, positioned more towards the center, is also wearing a red life jacket. The fourth individual, standing to the right, is wearing a yellow life jacket. All of them appear to be engaged in some form of water-based activity, possibly a rescue or training exercise.