Our sub was parked on the upper deck of the most famous wreck in history ... the corridors and stairwells of Titanic via my ROV avatar. Its gothic ruin exists now in a ghostly limbo, neither ...

came across a debris field leading to the wreck of the Titanic. It had been on the bottom of the ocean floor for 63 years. “He was never expected to find the Titanic, but on board the Knorr ...

Are you ready to go back to Titanic? Get the inside story ... for a while," Cameron tells PEOPLE. For now, he adds, "I'm not going back out to the wreck. I've done my investigation.