The OWSI course runs over 4 days (the last 4 days of an IDC) and includes academic, confined water and open water teaching sessions. This course is designed to hone your skills as a dive educator and give you a thorough understanding of how to make best use of the PADI system of diver education. Upon successful completion of this course you will take the instructor Exams (IE). The IE is an independant evaluation of your diving and educational skills.