What an amazing expedition.
I just finished watching Under the Pole. It’s about an expedition to trek from the North Pole towards land all the while doing dives (51 to be exact) to film the little seen underside of the Arctic Ice. Some fantiastic footage of unusual ice formations and creatures (arctic shrimp, sea angels and more) in their habitat. The ability of man to take on and survive in such an inhospitable environment is truly amazing.
Definitely worth watching if you get a chance.