Trailer of the multiple award-winning Red Bull Documentary „BACK FROM THE ABYSS“ (Zurück aus der Tiefe) about the deepest No Limit freedive and new world record of freediver Herbert Nitsch, also called „the Deepest Man on Earth“.
On June 6th, 2012, Herbert dove to 253.2 m (830.8 ft). During the No Limit sled-dive, well after having reached the planned depth, Herbert temporarily fell asleep due to nitrogen narcosis and consequently missed the planned one-minute underwater decompression stop on the same breath-hold. At the surface he was alert and asked for a mask to return underwater to recompress on pure oxygen, which is a standard after-dive safety feature to further off-gass. But it was too late.