National Geographic's DEEPSEA CHALLENGE is now available in the App Store!  On March 26, 2012, National Geographic Explorer-in-Residence and Academy Award-winning filmmaker James Cameron piloted the DEEPSEA CHALLENGER, currently the world's deepest diving manned submersible, to the Challenger Deep in the Mariana Trench. He was the first person in history to reach that point alone, and only the third person ever to go there.  His dive brought back images and samples that scientists around the world are studying. Now it's your turn. National Geographic has named you the new pilot of the DEEPSEA CHALLENGER. You have the opportunity to descend almost seven miles down to the Challenger Deep. Descend to the ocean's depths, evade mazes of whales and jellyfish, capture exotic creatures for science, and survive the terrors of the deep ocean in National Geographic's DEEPSEA CHALLENGE! Download today!