in 2010, he sailed through the indian ocean geyer. the same area where search teams are looking for doomed flight 370. >> what we found there were things like derelict fishing nets, multicolored buoys. the little buoys like the one behind me. lots of buckets and crates. other goods like bottles and bottle cap and bags and forks and knives. there was so much stuff already there. the aircraft, when they debriefed the aircraft, it's blending interest all that. >> reporter: one reason making finding the missing plane such a challenge. recently a chinese ship in search of the airplane came across trash -- trash instead. even sea life can't tell the difference. fish, sea lions, birds, they ingest this junk thinking it might be food. >> i heard about there being 300,000-police pusz in the aircraft. there are -- 300,000-plus pieces in the aircraft. there are more. >> there are two in the pacific and two in the atlantic. they form when ocean currents bounce off the continents and create a vortex of swirling water which pulls debris from the sh