EXTREME scuba diving UNDER ICE! (Incredible footage of US Navy diver’s ARCTIC ADVENTURE!)
Amazingly the water temperature experienced by the divers would have been around -1.0 °C (the salinity of the water slightly lowers the freezing point).
And you will have noticed that all the divers were tethered for their safety. Polar diving can be very hazardous – with buoyancy control being the critical factor.
United States Navy divers carry out a number of crucial functions including: rescue, salvage, demolition, research and reconnaissance.
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