Semaphore Flag Signal is one of the knowledge & part of a syllabus of the Boy Scouts (Pengakap Muda). The uses of semaphore flag signal is to communicate with each other in the event of the communication system breakdown. I was giving the chance to teach and guide all the 84 woodbadge course participants of the course to know the knowledge of the Semaphore Flag Signal. It was a great opportunity for me.