Underneath the Park

The park is a place where people go to run, walk their dogs, have a picnic, and enjoy the fresh air. The image of children playing and the sounds of the ice cream truck coming by. Peaceful and kind, that's all we think of when we think of the park. That's all the interest within the park right? Kids, animals, and food. That, however, is not what interest me. What interest me is not on the park or what's around it. I'm interested in what's under it.