It is late 2004, and 34-year-old Englishman Alistair Appleton is about to fly from London to the Brazilian coast, where he will drink ayahuasca for the first time. With wit, insight, and sensitivity, Alistair shares this experience with us, and chats with some fellow participants before and after the ayahuasca ceremonies. For the past few years, Alistair had been working as a television presenter. In 2000, he started making trips to the Centre for World Peace and Health in Scotland to learn how to meditate. When clinical psychologist Silvia Polivoy opened an ayahuasca healing center in Bahia in 2004, Alistair faced his fears and seized the opportunity to attend.

A 3-part documentary granting a unique and privileged access into the magical world of whales and dolphins, uncovering the secrets of their intimate lives as never before. Episode 1: Giant Lives / Episode 2: Deep Thinkers / Episode 3: Voices of the Sea

Riding Giants is story about big wave surfers who have become heroes and legends in their sport. Directed by the skateboard guru Stacy Peralta.

This documentary follows oceanographer Sylvia Earle's campaign to save the world's oceans from threats such as overfishing and toxic waste.

Computer-generated imagery and other visualization techniques reveal how it would look if all the water was removed from RMS Titanic's final resting place.

Before leaving for Rome with his mother, five year old Natan is taken by his father, Jorge, on an epic journey to the pristine Chinchorro reef off the coast of Mexico. As they fish, swim, and sail the turquoise waters of the open sea, Natan discovers the beauty of his Mayan heritage and learns to live in harmony with life above and below the surface, as the bond between father and son grows stronger before their inevitable farewell.

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.

An underwater exploration beneath kelp forests in the Pacific Ocean off the coast of Southern California. The film captures the birth of a shark, squids mating, a lobster molting, a fish protecting its nest from an octopus and a sea urchin, and the sea bed covered with brittle stars.

This is the planet we still know so little. We call it Earth but less than 1/3 is land, over 2/3 is water and we use that water as a dumping site for our waste and as if it's an inexhaustible "horn of plenty" for humans. Our most important ecosystem is on the verge of collapse unless we act now. At this very moment the main problem with the oceans is that they're getting emptier and emptier. If we don't do anything then we face one of the biggest disasters in history of mankind.

The world's most pristine and least understood ocean, the Arctic, is under threat from chemical pollutants, plastics and climate change. In the northern regions of Norway, Canada and Russia, you can see evidence of steadily warming Atlantic waters moving further north. This film explores the impact these waters are having on the diversity of organisms and ecosystems that are unique to the Arctic.

With a scuba suit and a GoPro in hand, a 65-year-old shoe store owner is determined to clean up Malta’s seas, one piece of rubbish at a time.

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.

Emocean started out as a surf film but quickly turned into something so much more than wild waves and barrel rides. This is a documentary with soul; a salty blend of stories by the eclectic assortment of people sharing tales of adventure, adrenaline, inspiration, love and loss and their relationship with the ocean. Some are well-known like Hawaii's Pipeline and California's Mavericks and others are remote spots tucked high up in North West Australia and deep in South Australia. This film, underpinned by inspiring surfing, is also a love letter to the sea woven through with experiences from surfers, filmmakers, fishermen, marine scientists and watermen.

The odyssey of a Tuamutu fisherman who sets out from his atoll-only coral island to procure fertile land in the "distant" archipelagos. Lost in the vast South Pacific, he finds the atoll from which he had departed now doomed from atomic experiments.

The Sardine Run - One of the most spectacular marine wildlife events in the world. Millions of sardines swim along the South coast of Africa pursued by thousands of dolphins, countless sharks and gannets, all competing for nature's bounty. Meanwhile, every fisherman on the south coast of Africa also races to exploit the generosity of this vast ocean.

Girt By Sea is a cinematic love letter to the coastline of Australia - a poetic celebration of our connection to the sea as documented through archival footage over the past 100 years.

The Indonesian archipelago in the Indo-Pacific Ocean comprises thousands of islands, atolls and the largest concentration of coral reefs in the world. This rich and varied environment is a product of a unique set of natural circumstances. The equatorial sun powers ocean currents among the tiny dots of land. Where the archipelago meets the western tip of New Guinea an intersection of ocean currects creates perhaps the world's richest reefs - in the region of the Rajah Ampat Islands. A coral reef houses a myriad of colors, shapes and patterns: from the bulb tentacle anemone which protects, and in turn is protected by, the brightly coloured clownfish; to the multi-branched gorgonian, home of the tiny pygmy seahorses.