Guillaume Nery base jumping at Dean's Blue Hole

World champion freediver Guillaume Nery special dive at Dean's Blue Hole, the deepest blue hole in the world filmed entirely on breath hold by the french champion Julie Gautier

Dean's Blue Hole is the world's deepest blue hole (underwater sinkhole), which plunges 202 metres (663 ft) to the ocean floor, in a bay west of Clarence Town on Long Island, Bahamas.