Between Korilearns’ addiction to the Discovery Channel and Amandalearns’ addiction to the classic 90’s sci-fi television show Seaquest we should have known this answer immediately.
The Mariana Trench is the deepest known part of the world’s oceans, and the lowest elevation of the surface of the Earth’s crust. It is located in the western Pacific Ocean, to the east of the Mariana Islands. The trench is about 2,550 kilometres long but has a mean width of only 69 kilometres. It reaches a maximum depth of about 10,916 metres at the Challenger Deep, a small slot-shaped valley in its floor, at its southern end. If Mount Everest, at 8,848 metres tall, were set in the deepest part of the Mariana Trench, there would be 2,076 metres of water left above it.