Deep Ocean: Descent into the Mariana Trench

Explore the deep sea in the Mariana Trench with David Attenborough. Unravelling this world 10,920 meters below the ocean, strange new marine creatures start to emerge. Some of these creatures have never been seen before by human eyes.

Diving to these depths, however, pose quite the challenge. At the Mariana Trench depths, water pressure is thought to destroy proteins and make life (as we know it) impossible. Yet, the Trench does harbour marine life.

In a feat of engineering, science and filmmaking, a deep-sea film crew decides to go explore the mysteries of the Mariana Trench. Teaming up with a science vessel and marine biologists, the filmmakers probe the dark ocean for two months. Here they experience wonders only seen in the Challenger Deep, where gigantic squids and the angelic Mariana Snail Fish resides.

But what else lives in these dark water? Swim through the deepest ocean on earth as we descend into the Mariana Trench. With a specialized unmanned submarine and search equipment fitted with a 4k camera, we’ll join the journey to look at the extreme limits of life on earth.

Deep Ocean: Descent into the Mariana Trench
  • Info
  • Release date2018
  • Full runtime
  • Director(s)Manabu Hirose, Hiroaki Katayama
  • Production companyNHK