http://www.lifebuzz.co/the-abyss/
Not martial arts, but I thought you guys might like it.
Awesome vid.
World champion freediver Guillaume Nery does something extraordinary at Dean’s Blue Hole. This is the deepest blue hole in the world, measuring 663 feet to the bottom floor. Nery base jumps and it’s filmed entirely on “breath hold” by his girlfriend, French champion, Julie Gautier.