A biographical documentary about the Belgian free-diver Fred Buyle and his art of silent diving.

Described as being a film about determination, danger and the ocean’s greatest depths, James Cameron's "Deepsea Challenge 3D" tells the story of Cameron’s journey to fulfill his boyhood dream of becoming an explorer. The movie offers a unique insight into Cameron's world as he makes that dream reality – and makes history – by becoming the first person to travel solo to the deepest point on the planet.

James Cameron teams up with NASA scientists to explore the Mid-Ocean Ridge, a submerged chain of mountains that band the Earth and are home to some of the planet's most unique life forms.

Jean-Michael Cousteau's documentary about the Great Barrier Reef keeps getting interrupted by characters from Disney's Finding Nemo.

An expedition looks into whether Titanic's hull had a construction design flaw that caused her to break apart. Featuring advanced CGI technology, archive documents and photographs, as well as footage from the modern-day History(R) expeditions, "Titanic's Achilles Heel" is a remarkable journey into the ongoing legacy of a ship that continues to capture the world's attention.

Two biologists set out on an undertaking as colossal as their subjects—deciphering the complex communication of whales. Dr. Michelle Fournet and Dr. Ellen Garland journey to opposite hemispheres to uncover a culture eons older than our own.

Oceanographer Sylvia Earle and a cast of marine scientists tell the story of the incredible work being done to protect our oceans fragile ecosystem.

Deep Blue is a major documentary feature film shot by the BBC Natural History Unit. An epic cinematic rollercoaster ride for all ages, Deep Blue uses amazing footage to tell us the story of our oceans and the life they support.

Gombessa Expedition 4 Laurent Ballesta went to observe a gathering of thousands of groupers during the full moon of June 2014 (Le mystère mérou) in the southern pass of the Polynesian atoll of Fakarava, where he discovered a pack of over seven hundred grey sharks. How can this unprecedented density be explained? Could it be that social behaviors govern this wild horde? During three years of preparation, he and the other divers on his international scientific team tamed their fear by abandoning the defensive reflexes that provoke shark aggression, with the aim of slipping into the heart of the raging pack to study and film it from the inside. Sharks fitted with microchips, receiving antennas, hydrophones, an ark of 32 synchronized cameras...: a whole technological arsenal is mobilized for the project. As the groupers approach for their annual spawning, what battle plan will the sharks deploy?

Pre-historic giants roam the world's oceans. Go beneath the surface of the sea for an extraordinary look & listen at these majestic creatures, as we explore their social behavior & hunting strategies.

Fascinating underwater documentary filmed with hand-held cameras by frogmen and mostly filmed in deep-water seas from within a special designed batiscaff, by the Cousteau family of sea explorers. Preserved by the Academy Film Archive in 2010.

Deep sea: 1000m below the surface no light, immense pressure and icy temperatures. The deep sea encompasses more than 90% of the planets habitat. Yet we know less about these depths than about the moon. This film documents the technical, scientific, and ecological challenges of deep sea researchers. Scientists work worldwide together to collect data on the physical state of the upper ocean. With more than 3000 autonomous floats they monitor the oceans for influences on weather systems like El Nino or the monsoon. Does it affect global climate change? Does the deep sea offer solutions for the CO2 issue? Researchers in the Okinawa Trough are trying to find out. The sea floor harbors enormous amounts of resources: oil, natural gas, methane. Scientists work hard to try and locate these materials. Millions of deep sea dwellers are waiting for their discovery. The Census of Marine Life is trying to catalogue these bizarre ocean creatures before they disappear.

The deep waters of the Southern and Pacific Oceans still hold many mysteries. Two international teams of scientists set out to explore the icy depths of Antarctica and the abysses of the Mariana Trench. Filmed for the first time, creatures seemingly from another galaxy cohabit with champions of survival in extreme conditions.

The documentary follows leaders and community members from the tropical Pacific island nation who are making bold changes to move the needle on marine protection. With a population of under 2,000 people and a marine reserve covering 40% of its waters, Niue has demonstrated the ways in which traditional knowledge and contemporary science can live in harmony for the benefit of people and the planet.

Exploring an unknown world 10,000 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.

Blue Whales: Return of the Giants 3D takes viewers on a journey of a lifetime to explore the world of the magnificent blue whale, a species rebounding from the brink of extinction. Following two scientific expeditions—one to find a missing population of blues off the exotic Seychelles Islands, the other to chronicle whale families in Mexico’s stunning Gulf of California—the film is an inspirational story that transforms our understanding of the largest animal ever to have lived.

Shark expert Neil Hammerschlag and a crew of researchers search for an elusive hammerhead shark.

Peter Snow presents highlights from today's three deep-sea dives around the world. In 2002 BBC organized three concurrent dives , first in Monterey Bay where unmanned submersible is lowered into underwater canyon which is over mile deep. Second dive is in Grand Cayman where submersible Atlantis will explore life at the spectacular Cayman Wall , Kate Humble reports . During the dive, the crew used bait to attract a deep-water giant, the six-gill shark. Third dive takes place in middle of the Atlantic 1200 miles west of Portugal, which is also deepest of the three dives, divers will descent in Russian submersible Mir from research vessel Keldish and the Mir will dive in the bottom of the ocean in 2300 metres .

Coral reefs are the nursery for all life in the oceans, a remarkable ecosystem that sustains us. Yet with carbon emissions warming the seas, a phenomenon called “coral bleaching”—a sign of mass coral death—has been accelerating around the world, and the public has no idea of the scale or implication of the catastrophe silently raging underwater.

A journey into the extraordinary life and legacy of pioneering marine biologist Edie Widder.