The PADI Scuba Diver course is a subset of the PADI Open Water Diver course. If you're short on time but really want to become a diver, the PADI Scuba Diver rating might be right for you—particularly if you expect to go scuba diving primarily with a dive guide. This course is an intermediate step for earning an Open Water Diver certification, if that's your ultimate goal.
The PADI Scuba Diver course consists of three main phases:
Knowledge Development (eLearning, independent study or in a classroom) to understand basic principles of scuba diving - just the first three of five sections of the Open Water Diver course.
Confined Water Dives to learn basic scuba skills - just the first three of five dives of the Open Water Diver course
Open Water Dives to use your skills and explore - just two of four dives of the Open Water Diver course.