This picture was taken at an old fort by the sea. It's obvious that it was once used in warfare, because a row of old black guns is pointing toward the water. In the foreground, a group of junior high school students in uniforms are standing around a guide in a hat. He's pointing at the sea, and he seems to have mastered every detail of the fort's history. If I had to guess, he's explaining how soldiers protected the harbor from enemy ships. A girl is taking notes, and a boy is taking photos with his phone. School trips like this are a long-standing tradition, and I think they're very meaningful. Seeing a real fort helps students understand history much better than reading a textbook. Over on the right, there's a big old tree next to the red brick wall, giving the students some shade. In the background, I can see the blue sea, and a gray navy ship is far away in the harbor. Maybe there's a naval base nearby.