Breathing from the octopus of your buddy in a stationary position

 

Neutral buoyancy near the bottom (fin pivoting - air from tank)

 

Neutral buoyancy near the bottom in case of inflator failure

 

Hovering in mid-water

 

Simulation of a controlled emergency swimming ascent (9 meters horizontal)

 

Weight belt removal / replacement at the bottom

 

Weight belt removal / replacement in mid-water in motion

 

Weight belt removal / replacement in hovering with feet touching at the bottom

 

Scuba unit removal / replacement at the bottom

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Scuba unit removal / replacement in mid-water (in hovering)