Advanced Scuba Diver Certification boots the geometry of which is

the geometry of which is covered by a worldwide patent

ankle seals keep your skin dry

to the advantage of its flexibility and lower weight

High-Grade silicone skirt bonded directly to lens

much harder than the traditional brass of the fixed seats

Advanced Scuba Diver Certification boots the geometry of which isAbout the Course The Advanced Open Water Diver course is all about advancing your skills. You'll practice navigation and buoyancy, try deep diving and make three specialty dives of your choosing (it's like a specialty sampler platter). For every specialty dive you complete, you can earn credit toward PADI specialty certifications. Here are a few of the many options: Enriched Air Nitrox, Deep, Project AWARE, Night, Peak Performance Buoyancy, Full Face