Today, Canadian born film maker and National Geographic explorer James Cameron reached the deepest point on earth - Challenger Deep - where he spent approximately 6 hours collecting valuable scientific information in a place only three people have ever visited. So where exactly is this place? The Challenger Deep located in the Pacific Ocean is the deepest point of the Mariana Trench. It is located 10,994 m down, in the dark depths.
As you can imagine - conditions down there are different to what we experience on earth's surface. It's dark and pressures are high - approximately 1,099 times that at the surface. All things to consider when designing Mr. Cameron's state-of-the-art submersible.