After a biking accident, Finnish free diver Johanna Nordblad nearly lost her leg to necrosis. As part of her treatment, she began free diving under the freezing Arctic ice. The pain was agony when she first started; now she holds a world record for the sport she grew to love. British director Ian Derry joined her on a dive in this short documentary for an experience he describes as “literally breathtaking.”

http://video.nationalgeographic.com/video/short-film-showcase/arctic-free-diving-helped-save-her-leg-now-she-has-a-world-record

Video

Johanna successfully achieved the Longest swim under ice – breath held (no fins, no diving suit) female with an impressive 50 metres.

http://www.guinnessworldrecords.com/news/2016/11/video-classics-finnish-free-diver-sets-record-swimming-under-frozen-lake-451934