Check out this crazy video of Guillaume Néry taking one single breath and dive into the deepest pool in the world in Italy.
Néry looks peaceful swimming through, but it's crazy to think he only took one breath.
His wife, Julie Gautier, recorded the entire thing, and it must have been nerve-racking to watch.
The pool he is diving in is called Y-40 "The Deep Joy" pool and was designed by architect Emanuele Boaretto.
The pool is 131 feet deep and contains 1,136,000 US gallons of water kept at a temperature of 90–93 °F.
Photo: Getty Images