Do you want to maximize your dive times? (Of course.) Do you want to get the most out of your dive computer? (Naturally.) Then the PADI Multilevel Diver Specialty course is for you. In this course, you learn how to plan dives that extend your bottom time by crediting you for slower nitrogen absorption when you ascend to a shallower depth. That's the way you really dive, after all. You'll learn to use the multilevel electronic eRDP-ML or PADI's Wheel version of the RDP for planning multilevel dives; both are great companions for your dive computer (as well as a way to make multilevel dives if you forget to bring your computer).