A Class of 2021 U.S. Military Academy cadet walks the balance beam during the water obstacle course at Camp Buckner, West Point, N.Y., on July 24, 2018. The water obstacle course is one of the final challenges for cadets taking part in cadet field training. The obstacle is meant to build confidence and overcome the fear of heights and water as each cadet attempts the course, comprised of two phases--the slide for life and the beam walk-rope drop.