 The confidence course is a series of obstacles that build a crew's confidence and allow them to negotiate obstacles that they've never seen before. All the recruits, their safety is handled by the drill instructors that are in their group. Each group has a drill instructor that's monitoring them closely while they do the obstacles. Some of the obstacles that recruits have the most trouble with are the higher obstacles. The A-frame or the stairway to heaven are the ones that you struggle with the most.