This course is designed for experienced divers, photographers, underwater archaeologists and dive leaders. The aim is to learn techniques and skills to be able to help yourself independently outside the buddy system. The aim of the course is not to go diving alone. Rather, we discuss various diving techniques and the increased demands on your equipment together and put these into practice. We teach this course with a maximum of two students. You do the open water lessons 1 to 1 with your instructor.