how far down have humans gone beneath the ocean?
How Deep Under the Sea Have Humans Gone. Almost 7 miles below the surface of the Pacific Ocean lies the worldâs deepest point, the Challenger Deep. Has anyone ever ventured there? The Challenger Deep, located in the Mariana Trench in the western Pacific near Guam, lies at a depth of 35,840 feet and could easily hold the 29,029-foot Mount Everest. The Deep was discovered in 1875, and people have been attempting to precisely measure its depth ever since.