https://howweknowdeep.com/questions/what-is-the-deepest-part-of-the-ocean/ https://i.ytimg.com/vi/qBeLl0z4s54/maxresdefault.jpg What is the deepest part of the ocean? The deepest known part of the ocean is Challenger Deep in the Mariana Trench, approximately 10,935 meters (35,876 feet) below sea level. Reported values vary slightly because different surveys, instruments, and uncertainty corrections produce different estimates. https://www.youtube.com/embed/qBeLl0z4s54 486 2026-08-31