'Titanic' director James Cameron's become only the third person ever to see the floor of the Pacific Ocean's deepest part.
His solo voyage to the bottom of the sea was a journey almost 11 kilometres down into the Challenger Deep in the Mariana Trench.
It took him more than two and a half hours to reach his destination.
It was last done in 1960 by U.S. Navy Captain Don Walsh and Swiss oceanographer Jacques Cousteau.
SOUNDBITE: JAMES CAMERON SAYING (English):
"Jacques Cousteau used to say if we knew what was there we wouldn't have to go. So we have to go because we don't know what's there. We have a general idea that we're going to see very strange animals like anthropods and holothurians and other kinds of invertebrate but science can't answer one very basic question: are there fish? We don't know."
Cameron was planning to spend six hours on the ocean floor collecting samples for scientific research.
He was also planning to capture the historic dive on camera.
The feat is part of a project intended to increase our understanding of unknown areas of the Earth.
