There are three people visible in the image. They appear to be engaged in some form of manual labor, possibly cleaning or maintaining the waterway. The person on the left is wearing a red shirt and appears to be bending over, possibly scrubbing or cleaning something in the water. The second person, located slightly behind and to the right, is also dressed in a red shirt and seems to be standing upright, possibly observing or supervising the work being done by the first person. The third person, positioned further back and to the right, is also wearing a red shirt and appears to be standing still, possibly observing the activity or waiting for their turn.