Naqoyqatsi

In 2009 a team of British cavers went on an expedition deep within the jungle of central Vietnam. To their amazement they discovered an enormous cave which they believe to be the biggest in the world. The team, the first humans ever to enter the cave, traveled 6 kilometers underground until their way was blocked by a gigantic rock face they dubbed 'The Great Wall of Vietnam'. Now they have returned, but this time with the right equipment to climb the wall and with a geologist and zoologist to discover if this is indeed the Biggest Cave in the World and what secrets lie deep within?

At the border between Navarre and Aragon we find the moors known as the Bardenas Reales, characterized by the dust and the omnipresence of the northern wind. This is a portrait of a land, but also a journey through Pilar’s memories. It is a glance at the past but also the present, and about how everything has changed, for better or worse.

Documentary series uncovering the secret lives of big cats, using the latest technology and scientific research to bring these animal superstars out of the shadows.

Charlotte Uhlenbroek travels to Madagascar to follow the story of three mother ring-tailed lemurs struggling to survive one of the driest and hottest seasons in decades. One lemur has already lost her baby, the other two have a fight on their hands if their infants are to stand a chance, and matters are made even worse when neighbouring lemur tribes invade the mothers' territories.

An exploration of technologically developing nations and the effect the transition to Western-style modernization has had on them.

Ocean Voyagers explores the familiar themes of motherhood and parenting in a world as unfamiliar as it is breathtaking. Featuring a precocious newborn humpback calf and his enormous 40 ton mother, we are taken on a journey of discovery into their world.

David Attenborough narrates this close up look at these tiny pollinators captured in flight as never before. Acrobats of the air - flying jewels - iridescent partners of countless plants: hummingbirds are amongst the most remarkable creatures on our planet.

Cuba's enforced isolation has resulted in the unlikeliest of marine reserves: a huge, rambling archipelago known as Jardines de la Reina, or "Gardens of the Queen." Stretching around 140 miles along the southern coast of Cuba, it's one of the longest barrier reef systems in the world. Get an up-close look at Fidel Castro's diving playground, a forgotten ocean paradise unseen for half a century, and witness exotic species rarely seen elsewhere in the region. It's the lost jewel of the Caribbean, but how long can this pristine wilderness survive?