Do you want to extend your in-water dive time? Do you want to gain a better understanding of decompression and use a gas that will allow you to do that?
Nitrox Diver
Advanced Nitrox Diver
Extended Range Diver
Rebreather Diver
Gas Blender
Twinset Diver
Open Circuit Trimix
Trimix Rebreather Diver
Open Water Instructor
Technical Diving Instructor