Supervised divers from 20 to 40m and autonomous diver from 0-20 m (PE40 & PA20). This course is more technical as it is establishing autonomy in the scuba diving world, which includes, among other things, navigation and rescue of a distressed diver. It also gives divers the possibility to dive from 20 to 40 m supervised by an instructor. This level is perfect for divers who want to dive deeper, mainly to observe various wrecks, but also for divers who are looking for greater autonomy while diving.