An obstacle course can also be referred to as a challenge course, adventure course, or agility course. These terms all describe a physical course that requires participants to navigate through a variety of obstacles such as walls, ropes, and balance beams. They are often used for team-building exercises or training for military or athletic events. Other synonyms for an obstacle course include a fitness circuit, ninja course, or assault course. No matter what it's called, the purpose of an obstacle course is to test one's strength, endurance, and agility while also promoting teamwork and problem-solving skills.