Cameron hits Challenger Deep , part of Cameron , a spokeswoman says . He 's the second person to dive solo to that spot , the deepest in any of the world 's oceans . Monday ( 5:52 p.m . ET Sunday ) , according to Ellen Stanley , a spokeswoman for the National Geographic Society that is working with Cameron on the project . `` Just arrived at the ocean 's deepest pt , '' Cameron wrote on Twitter . ` the Mariana Trench is the director of blockbuster hits such as `` Titanic '' and Challenger Deep
Cameron hits Challenger Deep , part of Cameron , a spokeswoman says . He 's the second person to dive solo to that spot , the deepest in any of the world 's oceans . the Mariana Trench is the director of blockbuster hits such as `` Titanic '' and Challenger Deep