The Challenger Deep is located in the western Pacific Ocean, at the southern end of the Mariana Trench, near the Mariana Islands. According to the August 2011 version of the GEBCO Gazetteer of Undersea Feature Names, the Challenger Deep is 10,920 ± 10 m (35,827 ± 33 ft) deep at 11°22.4′N 142°35.5′E . [1]

The Mariana Trench is the ocean’s deepest point. The trench runs more than 1,500 miles long and stretches across a Western strip of the Pacific Ocean south of Japan and north of Papua New Guinea. The Mariana Islands are the trench’s namesake, sitting on a piece of the western ridge.

A Mysterious Habitat in the Ocean The Mariana or Marianas Trench is the deepest place in the ocean. It’s a fascinating area. A NOAA expedition has examined the trench and has taken some fantastic photos and videos of its inhabitants. The organization’s exploration of the area lasted for fifty-nine days.

The Mariana Trench deepest point the Challenger Deep was named after the H.M.S Challenger ship. In 1951, the H.M.S Challenger II ship returned with an echo sounder and measured a depth of about 11 kilometers. Only two humans in history have descended into the Challenger Deep depths.