HONOLULU (AP) - Hollywood icon James Cameron has completed his journey to Earth’s deepest point.
The director of “Titanic,” “Avatar” and other films used a specially designed submarine to dive nearly seven miles. He spent time exploring and filming the Mariana Trench, about 200 miles southwest of the Pacific island of Guam, according to members of the National Geographic expedition.
He reached a depth of 35,756 feet and stayed on the bottom for about three hours before he began his return to the surface, according to information provided by the expedition team. He had planned to spend up to six hours on the sea floor.
“Cameron collected samples for research in marine biology, microbiology, astrobiology, marine geology and geophysics,” the Geographic said.
The trip to the deepest point took two hours and 36 minutes. But Cameron’s return aboard his 12-ton, lime-green sub called Deepsea Challenger was a “faster-than-expected 70-minute ascent,” according to National Geographic. A helicopter spotted the submersible bobbing in the water and it was brought aboard the ship by a crane.
Expedition physician Joe MacInnis told National Geographic News before the journey that recent test dives, including one that went more than five miles deep, had gone well and that he expected Cameron would be fine.
“Jim is going to be a little bit stiff and sore from the cramped position, but he’s in really good shape for his age, so I don’t expect any problems at all,” said MacInnis, a long-time Cameron friend, according to National Geographic.
Cameron also captured still photographs and video, but there was no immediate word on when the images will be released. The Geographic said the expedition is being chronicled for a 3-D feature film for theatrical release and subsequent TV broadcast.
“There is scientific value in getting stereo images because … you can determine the scale and distance of objects from stereo pairs that you can’t from 2-D images,” Cameron told the Geographic before the dive.
The scale of the trench is hard to grasp _ it’s 120 times larger than the Grand Canyon and more than a mile deeper than Mount Everest is tall.
“It’s really the first time that human eyes have had an opportunity to gaze upon what is a very alien landscape,” said Terry Garcia, the National Geographic Society’s executive VP for mission programs, via phone from Scotland.
Among the 2.5-story-tall sub’s tools were a sediment sampler, a robotic claw, a “slurp gun” for sucking up small seacreatures for study at the surface, and temperature, salinity, and pressure gauges.
Swiss engineer Jacques Piccard and Don Walsh, a U.S. Navy captain, are the only others to reach the spot. They spent about 20 minutes there during their 1960 dive but couldn’t see much after their sub kicked up sand from the sea floor.