The PADI Open Water Diver course is the world’s most popular scuba course, and has introduced millions of people to the adventurous diving lifestyle. The fun part about this course is . . . well, just about all of it because learning to dive is incredible. You breathe underwater for the first time (something you’ll never forget) and learn what you need to know to become a certified diver. During the course, you’ll make at least five pool dives and four dives at local dive sites under the supervision of your PADI Instructor.