<P> On 26 March 2012 ( local time ) , Canadian film director James Cameron made a solo manned descent in the DSV Deepsea Challenger to the bottom of the Challenger Deep . At approximately 05 : 15 ChST on 26 March ( 19 : 15 UTC on 25 March ) , the descent began . At 07 : 52 ChST ( 21 : 52 UTC ) , Deepsea Challenger arrived at the bottom . The descent lasted 2 hours and 36 minutes and the recorded depth was 10,898.4 metres ( 35,756 ft ) when Deepsea Challenger touched down . Cameron had planned to spend about six hours near the ocean floor exploring but decided to start the ascent to the surface after only 2 hours and 34 minutes . The time on the bottom was shortened because a hydraulic fluid leak in the lines controlling the manipulator arm obscured the visibility out the only viewing port . It also caused the loss of the submersible 's starboard thrusters . At around 12 : 00 ChST ( 02 : 00 UTC on 26 March ) , the Deepsea Challenger website says the sub resurfaced after a 90 - minute ascent , although Paul Allen 's tweets indicate the ascent took only about 67 minutes . During a post-dive press conference Cameron said : `` I landed on a very soft , almost gelatinous flat plain . Once I got my bearings , I drove across it for quite a distance ... and finally worked my way up the slope . '' The whole time , Cameron said , he did n't see any fish , or any living creatures more than an inch ( 2.5 cm ) long : `` The only free swimmers I saw were small amphipods '' -- shrimplike bottom - feeders . </P>
<P> On 26 March 2012 ( local time ) , Canadian film director James Cameron made a solo manned descent in the DSV Deepsea Challenger to the bottom of the Challenger Deep . At approximately 05 : 15 ChST on 26 March ( 19 : 15 UTC on 25 March ) , the descent began . At 07 : 52 ChST ( 21 : 52 UTC ) , Deepsea Challenger arrived at the bottom . The descent lasted 2 hours and 36 minutes and the recorded depth was 10,898.4 metres ( 35,756 ft ) when Deepsea Challenger touched down . Cameron had planned to spend about six hours near the ocean floor exploring but decided to start the ascent to the surface after only 2 hours and 34 minutes . The time on the bottom was shortened because a hydraulic fluid leak in the lines controlling the manipulator arm obscured the visibility out the only viewing port . It also caused the loss of the submersible 's starboard thrusters . At around 12 : 00 ChST ( 02 : 00 UTC on 26 March ) , the Deepsea Challenger website says the sub resurfaced after a 90 - minute ascent , although Paul Allen 's tweets indicate the ascent took only about 67 minutes . During a post-dive press conference Cameron said : `` I landed on a very soft , almost gelatinous flat plain . Once I got my bearings , I drove across it for quite a distance ... and finally worked my way up the slope . '' The whole time , Cameron said , he did n't see any fish , or any living creatures more than an inch ( 2.5 cm ) long : `` The only free swimmers I saw were small amphipods '' -- shrimplike bottom - feeders . </P>
who has went the deepest in the ocean
who has went the deepest in the ocean
James Cameron
James Cameron