This training is part of the company's safety policy, as part of a process to prevent and reduce work-related accidents linked to working at height. About forty risks are hidden on an industrial site, They appear randomly, depending on the duration and difficulty of the exercise. The learner's objective is to locate and identify these risks, in order to avoid them in his professional practice. If the learner passes a risk without spotting it, he or she suffers a fall or witnesses an accident before being returned to the course a few meters before the risk situation in question.