The video shows a group of children observing fish in an aquarium. The children are standing in front of a large glass window that separates them from the aquarium. The fish are swimming around in the water, and the children are watching them with interest. The aquarium is well-lit, and the water is clear, allowing the children to see the fish easily. The children seem to be fascinated by the fish and are pointing and looking at them. The fish are of different sizes and colors, and they are swimming in different directions. The children are standing close to the glass, and some of them are reaching out to touch the glass. The aquarium appears to be a popular attraction, and the children are enjoying their time there.