Unbelievable Footage Of Guys Free Diving Under Icebergs [VIDEO]

This is a promo for a show that will air on the National Geographic Channel Sunday, October 26th at 6PM.  The show is called 'The Man Who Doesn't Breathe.'  It's about world champion freediver Stig Severinsen doing some crazy record breaking stunts underwater.  He's going to try and break his own record of holding his breath for 22 minutes.  Yes, you read that right, 22 minutes.  This might be worth watching.  I am not so interested in records being broken, I just want to see more footage like this.  Just amazing.