SSI qualifies you as an advanced open water diver on the moment you have logged 24 dives and are qualified in 4 different specialties.
For a specialty you always have to make 2 dives, video, theory with question review and final exam.
So with SSI you can slowly built up your experience until you are advanced. It is also possible to do 4 specialties in a short period. It will take a minimum of 4 days to do all disciplines.
Course materials may be bought upon arrival from the course provider (109 EUR per kit), or the participants may bring their own course materials with them.
SSI price from 359,90 EUR per person.
It is a requirement to do medical check-up before starting a dive course.