Deep Ocean Descent into the Mariana Trench. Word Search Puzzle Solver. Deep Ocean Descent into the Mariana Trench word Search Puzzle Game. Find words related to movie actors, actresses, and genres. Word Search Puzzle Solver. Exploring an unknown world 10000 m beneath the waves. After capturing a giant squid on film NHK's deep-sea film crew explores our planet's deepest point The Mariana Trench is nearly 7 miles deep. The water pressure is immense and it's a world that's long been out of our reach. What creatures could survive such hostile conditions? This is an expedition to explore the earth's deepest frontier. Narrated By David Attenborough. This includes identifying and searching for words that are related to : Documentary, Documentary, David Attenborough, Documentary, David Attenborough, David Attenborough .