Los Angeles - James Cameron has gone four kilometres underwater to the wreck of the Titanic dozens of times. Now the Avatar and Titanic filmmaker aims to go nearly three times deeper.

Cameron said on Thursday that he plans to take a submersible craft down 11km to the world's deepest point, in the Mariana Trench of the Pacific Ocean, about 320km south-west of Guam.

The journey later this month reportedly would be the deepest solo dive ever, breaking Cameron's own record set this week, when he descended 8km in the South Pacific.

Cameron will be the first person to descend to the bottom of the Mariana Trench, known as the “Challenger Deep”, since a two-man US Navy expedition did it in 1960. - Sapa-AP