The term CAMP ACTIVITY can be broken down into three words: DRILLS, HIKE, and HIKING. Drills are a type of physical exercise that involve marching and performing various movements in unison. HIKE is a term used to describe a long walk or trek, usually in a natural setting. HIKING is the act of going on a HIKE. All three activities are popular activities for campers to participate in, as they provide physical exercise and a chance to explore the outdoors.