The PADI Advanced Open Water Diver course consists of doing 5 (five) different adventure dives. Within these five adventure dives you are required to do the Deep Diver speciality course and the Underwater Navigator course. After that you can choose your three favourites from a number of other speciality dive courses. For each speciality dive, you are required to learn the theory behind the dive type before getting in the water. This course can be done over 2 or 3 days, where you can complete up to 3 dives on one day.