You don't necessarily have to carry the scuba tank on your back to explore the underwater world. Many divers have found it more convenient to carry their tank(s) on the side. Sidemount diving offers you more flexible possibilities and options to improve your streamlining. Plus, you don't have to walk around with heavy scuba tanks on your back - just step in the water, attach the tank(s) and off you go. Does that sound interesting to you? Then sign up for a PADI Sidemount Diver specialty course.
 If you are a PADI Open Water Diver and at least 15  years old, you can take a PADI Sidemount Diver specialty course.