National Geographic - James Cameron's Deepsea Challenge (2013)

As a boy, filmmaker James Cameron dreamed of a journey to the deepest part of the ocean. This film is the dramatic fulfillment of that dream. It chronicles the construction of the submersible and Cameron's solo dive to the depths of the Mariana Trench which is nearly seven miles beneath the ocean's surface by piloting a submersible he designed himself.On March 26, 2012, Cameron reached the bottom of the Challenger Deep, the deepest part of the Mariana Trench.

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