From the sand and the waves, I can tell this picture was taken at a beach. Since all the students are wearing matching T-shirts, I suppose this is a beach cleanup organized by a school. The first thing that caught my eye is the two students in the foreground. They are wearing gloves. The girl is putting a plastic bottle into a big trash bag, and the boy is pulling hard at an old fishing net. It looks heavy. Behind them, a teacher with a notebook is checking the students' names. Next to her, there is a pile of full trash bags, which shows how much litter they have collected. In my opinion, events like this are helpful, but they can't solve the problem alone. The sea brings new trash every day. People need to use less plastic in the first place. In the background, more students are spread out across the beach, and the gray sea stretches far away.