Ahmed Khalifa, PADI IDC Staff Instructor. SDI Specialty Instructor. But above all, I’m honored to be a war diver, I have started my dive career as a war diver (Egyptian Special Forces, 777) and then continued my dive education as PADI professional. Throughout this journey, I have witnessed many divers doing common mistakes but before we talk about them we need to know why we do mistakes!!
There are always 2 sides of the coin, either the trainer or the diver himself could be the rout cause of the problem/mistake,
A backplate and wing (often abbreviated as BP&W or BP/W) is a type of scuba harness with an attached buoyancy compensation device (BCD) which establishes neutral buoyancy underwater and positive buoyancy on the surface. Unlike most other BCDs, the backplate and wing is a modular system, in that it consists of separable components. The core components of this system are:
Lionfish carry a deadly poison in their spines. Lionfish are not poisonous, they are venomous. The difference between poison and venom is the method of delivery. Venom must be injected into the bloodstream to cause injury, such as through a sharp spine or fang, but is harmless if drunk or eaten.