160 km southwest of Reunion Island, just a few dozen metres beneath the surface of the Indian Ocean, lies the peak of an underwater volcanic structure known as Mont La Pérouse. The base of this enigmatic geological formation lies 5000 meters below sea level, with a size comparable to that of Mont Blanc. Permanent currents and strong winds characterise this site in the open seas, culminating in complex diving conditions under which Laurent Ballesta, together with his Gombessa diving team and local researchers had to navigate in order to conduct the study in depth. Further techniques such as observation and photographic inventory, biological and geological sampling, and the use of cameras and sonars were employed in this challenging expedition.

Tom Daley came to national and international prominence when he won the Men's 10 metre platform diving European championship in 2008, at the age of 13, and came 7th in the individual competition and 8th in the synchro competition at the Beijing Olympics. In the summer of 2009, aged 15, he won the World Championships, and this documentary followed him through the 2010 diving season.

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.

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.

Tom Daley visits the most homophobic countries in the Commonwealth to explore how gay athletes are facing extreme persecution. What can the Commonwealth Games do to help?

For more than 10 years, world champion freedivers Pipin Ferreras and Umberto Pelizzari have been vying for world records. Their love of the sea without compromise is what unites these two rivals. However, it is their different personalities and opposing diving philosophies that separate them. Pipin is the "No Limits" man who wants to go deeper and deeper. Umberto, the purist, seeks harmony in the ocean's depth. Ocean Men takes you into the world of these two awe-inspiring freedivers through the use of breathtaking underwater photography, enchanting music, and insightful animation.

With a team of the world's foremost historic and marine experts as well as friend Bill Paxton, James Cameron embarks on an unscripted adventure back to the wreck of the Titanic where nearly 1,500 souls lost their lives almost a century ago.

From the banks of the Bahamas to the seas of Argentina, we go underwater to meet dolphins. Two scientists who study dolphin communication and behaviour lead us on encounters in the wild. Featuring the music of Sting. Nominated for an Academy Award®, Best Documentary, Short Subject, 2000.

"1985: Heroes among Ruins" is a reflection of disaster. It is about the human solidarity, the search and rescue and the importance of civil protection, but above all, the triumph of the people over devastation during the earthquake of September 19, 1985 in Mexico City and the one ocurred in September 19, 2017.

The story of the rape of Nanking, one of the most tragic events in history. In 1937, the invading Japanese army murdered over 200,000 and raped tens of thousands of Chinese. In the midst of this horror, a small group of Western expatriates banded together to save 250,000. Nanking shows the tremendous impact individuals can make on the course of history.

Peter Gimbel and a team of photographers set out on an expedition to find and film, for the very first time, Carcharodon carcharias—the Great White Shark. The expedition lasted over nine months and took the team from Durban, South Africa, across the Indian Ocean, and finally to southern Australia.

Feature-length documentary about the greatest diver of all time. Four-time Olympic champion Greg Louganis has faced more than his share of challenges. In 2011, he is far from the public eye and struggling to pay his mortgage. Now, the openly gay, HIV+ world-class athlete returns to diving to mentor the USA Olympic hopefuls. This may be his best chance to regain the notoriety -- and financial stability -- he enjoyed at the height of his career.

Coral Reef Adventure follows the real-life expedition of ocean explorers and underwater filmmakers Howard and Michele Hall. Using large-format cameras, the Halls guide us to the islands and sun-drenched waters of the South Pacific to document the health and beauty of coral reefs. Featuring songs written and recorded by Crosby, Stills & Nash.

The Living Sea celebrates the beauty and power of the ocean as it explores our relationship with this complex and fragile environment. Using beautiful images of unspoiled healthy waters, The Living Sea offers hope for recovery engendered by productive scientific efforts. Oceanographers studying humpback whales, jellyfish, and deep-sea life show us that the more we understand the ocean and its inhabitants, the more we will know how to protect them. The film also highlights the Central Pacific islands of Palau, one of the most spectacular underwater habitats in the world, to show the beauty and potential of a healthy ocean.

Sangduen Chailert, or Lek, as she is generally known, has already rescued over 200 elephants. She has dedicated her life to saving the Asian elephant and founded a special camp, The Elephant Nature Park to protect them. We follow this winner of Time Magazine’s “Asian Hero of the Year” Award in her work. Lek is on a mission to save the Asian elephant in her native Thailand. This film looks at the plight of the Asian elephant, as it goes from being a widely used domestic animal, to becoming a burden on modernizing communities. With experts predicting its extinction within four decades, Lek’s work is needed now more than ever and she has gathered a large group of supporters and volunteers in her quest for a better future for the Asian elephant. This moving film demonstrates Lek’s natural understanding of and rapport with these huge animals and will stir the viewers emotions as it highlights the often desperate state some elephants are kept in.

A fascinating pictorial document: On an old, cluttered work ship, a man is helped on with a bulky, old fashioned diving suit. It's a complicated process, many layers and sections are carefully applied. He goes over the side. Some men row out to what looks like a wrecked barge and set dynamite. Then the diver returns and now laughs and acknowledges the camera. The other men, now safely away, blow up the barge.

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.

The true story of Joe Simpson and Simon Yates' disastrous and nearly-fatal mountain climb of 6,344m Siula Grande in the Cordillera Huayhuash in the Peruvian Andes in 1985.

As well as providing the subject for Luc Besson’s The Big Blue, Jacques Mayol did more than anyone to establish the sport of free diving to enormous depths without an oxygen supply. Using breathing techniques derived from yoga, he went to 50, 60, and even 100 meters—depths no one had considered to be within the bounds of human possibility. Mayol was a sportsman, a mystic, a vagabond, but above all, a man who believed in testing the limits of experience. This visually stunning tribute shows a man’s quest to be at one with the vastness of the ocean and to have no fear of the abyss within, where lurks serenity, freedom and finally, death.

Gombessa Expedition 3 Protected by an international treaty Antarctica has been spared the effects of hunting and fishing. But signs in ice’s cyclical patterns and its biodiversity have become worrying. Connected to the planet’s global ecosystem via atmospheric circulation and ocean currents, this white haven is suffering the effects of human activities. To document and explain what is unfolding in Antarctica, photographer, diver, and marine biologist Laurent Ballesta and photographer of extreme environments Vincent Munier will be blending their artistic perspectives of a rapidly changing continent. Laurent will tackle technical and human prowess below the ice to bear witness to its remarkable underwater life. His photographs will advance knowledge on Antarctica’s unique and little-known biodiversity. On land, his eye riveted to the lens of his camera, Vincent captures snapshots of life in an Emperor Penguin colony.