The Deep and Navigation specialties are compulsory. Firstly, we dive deep into the ocean using a compass. Next, you use the compass to perform search patterns. These skills are very important, as you may need them to search and recover a lost item. Additionally, during the dive, your instructor will show you what happens with colours and pressure changes after diving past 18 metres.
Moreover, you will have the chance to choose the other three courses you would like to specialise in. Scuba Shane Diving recommends the Computer, Advanced Buoyancy and Drift. However, the course can be tailor-made to your own preferences. Indeed, this is what makes my Diver Courses exciting and flexible!