Are you feeling the Halloween mood yet? While we love taking a walk in the woods, sometimes it can feel a little spooky. At Catoctin Mountain Park in Maryland, when the mist floats through the forest and the owls hoot from the trees, you could feel a little shiver. The sound of a snapping branch can startle you and your mind can imagine the strangest things. But there’s really nothing to fear here. Since the park’s boundaries include the Presidential Retreat of Camp David, it’s actually a really safe place. Photo by T. Zygmunt, National Park Service.