After your PADI Adventure Diver certification you can take the next step by completing two more adventure dives. If you've completed five total adventure dives that include deep and navigation, you're a PADI Advanced Open Water Diver.
PADI Adventure Dives can also count towards PADI Specialty Diver certifications. The PADI Adventures in diving program can be done in one day or spread over several depending on the time you have available.