Buoyancy is far more complex in regular SCUBA diving. For SCUBA, the tank size, material (aluminium or steel), changing weight as air is consumed plus a diver’s understanding of breathing techniques and BCD usage all contribute. STEPDive by comparison is incredibly easy! After completing a buoyancy test (usually only 1 – 2 kgs is required), a students position in the water is simply controlled by their breathing. Hence, the sensation of neutral buoyancy is enhanced (from wearing less equipment) and a greater understanding of how the lungs affect buoyancy underwater is developed and a key stepping stone towards a future peak performance buoyancy course.