Canadian directorhas reached the Earth's deepest point a place only two men have gone before. The director of "Titanic," ''Avatar" and other films used a specially designed submarine to dive nearly seven miles, completing his journey a little before 8 a.m. Monday local time. His depth on arrival: 35,756 feet a figure unattainable anywhere else in the ocean. The scale of the trench is hard to imagine it's 120 times bigger than the Grand Canyon and more than 5,280ft deeper than Mount Everest is tall. "All systems OK," were Cameron's first words upon reaching the bottom.
The first and only time anyone dove to these depths was in 1960. Swiss engineer Jacques Piccard and U.S. Navy Capt. Don Walsh took nearly five hours to reach the bottom and stayed just 20 minutes.
Cameron said the pressure "is in the back of your mind." The submarine would implode in an instant if it leaked. He was a little apprehensive beforehand but wasn't scared or nervous while underwater. "When you are actually on the dive you have to trust the engineering was done right," he said.
Cameron has made 72 deep-sea submersible dives. Thirty-three of those dives have been to the wreckage of the Titanic, the subject of his 1997 hit film.
After as long as six hours in the trench, Cameron will jettison steel weights attached to the sub and shoot back to the surface.