Which famous director is the first person to reach the bottom of the Mariana Trench solo?

Cameron became an expert on deep-sea exploration in conjunction with his research and underwater filming for The Abyss and Titanic. On March 7, 2012, he took the Deepsea Challenger submersible to the bottom of the New Britain Trench. On March 26, he reached the deepest part of the Mariana Trench, and spent over 3 hours exploring the ocean floor before returning to the surface