James Cameron completes record dive but resurfaces six hours early 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. There were no immediate reports regarding Cameron's well-being. A medical team was present when Cameron, 57, emerged from the sub, according to the expedition. 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.