Free-Diving Under Ice, There Is 'No Place for Fear'
Fishing under ice (ORIGINAL)
Diving below the Antarctic Ice Sheet with No Escape | Seven Worlds, One Planet | BBC Earth
Diving the Icy Blue Waters of Antarctica for Blue Planet II: Hugh Miller
U.S. Navy & Coast Guard • Extreme Cold Water Dive Under Ice
Ice diving is a type of penetration diving where the dive takes place under ice. Because diving under ice places the diver in an overhead environment typically with only a single entry/exit point, it requires special procedures and equipment. Ice diving is done for purposes of recreation, scientific research, public safety and other professional or commercial reasons.