Borneo Dark Shadow

Now Streaming with PBS Passport
Follow Steve Backshall as he drops down a sinkhole to explore a series of underground Bornean caves threatened by deforestation and limestone quarrying. The journey may lead to the potential to explore other undiscovered subterranean worlds.

Featured Video

Borneo – Dark Shadow
Follow Steve Backshall as he drops down a sinkhole to explore a series of underground Bornean caves threatened by deforestation and limestone quarrying. The journey may lead to the potential to explore other undiscovered subterranean worlds.
Full Length 48m
Borneo – Dark Shadow
Full Length
Borneo – Dark Shadow
48m
Follow Steve Backshall as he drops down a sinkhole to explore a series of underground Bornean caves threatened by deforest
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A Journey to Borneo
Clip
A Journey to Borneo
1m 58s
Steve and the Expedition team take to Borneo in search of cave art from our ancestors. They’re joined by experts who have
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Scutigera Rock Art
Clip
Scutigera Rock Art
2m 54s
During a cave exploration, the team comes across a scutigera, a large centipede. Pindi Setiawan, an Indonesian caver and r
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Aldo Kane's Day Off
Clip
Aldo Kane's Day Off
5m 26s
The jungles of Borneo are where Steve began his life of expeditions nearly 30 years ago. The team is working their way up
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Royal Marine Survival Skills
Clip
Royal Marine Survival Skills
38s
The team spends three days in the jungle searching for caves with their local guide. The terrain is so extreme that the Ro
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Digital Extra

Borneo's Rock Art Rewrites Human History

Local people believe these mountains are sacred and revere them as the birthplace of their ancestors. The local elders give the team their blessing to enter this hidden world.
Borneo's Rock Art Rewrites Human History

Behind the Scenes: the Dark Shadow Expedition

Steve Backshall and Aldo Kane walking through water with a boat.
The team uses long boats to journey up the Marang River into the heart of the Gergaji Karst Mountains. | Credit: Stuart Trowell/True to Nature Ltd.
Steve Backshall sitting in a long boat.
The team uses long boats to journey up the Marang River into the heart of the Gergaji Karst mountains. | Credit: Stuart Trowell/True to Nature Ltd.
Newly discovered rock art handprints located on the walls of a cave.
Newly discovered rock art with both negative and positive handprints, the first of their kind to be described in the Sangkulirangg Karst blocks. This remote cave is home to unique art that will ensure the protection of this area for generations to come. | Credit: Stuart Trowell/True to Nature Ltd.
Steve Backshall walking through the Marang River.
Steve clearing a path on the journey up the Marang River. | Credit: Stuart Trowell/True to Nature Ltd.
Image of the oldest confirmed figurative art in the world, a painting of a wild forest cow.
The oldest confirmed figurative art in the world, a painting of a wild forest cow called a Banteng. This art is found in Jeriji Saleh cave high up in the rock faces of the Gergaji Karst mountain range. | Credit: Mark Sharman/True to Nature Ltd.
Aldo Kane looks out at the sunrise from the entrance of a cave.
Aldo takes in sunrise from the rocky porch entrance of Jeriji Saleh cave high up in the cliffs of the Gergaji mountains, home to the oldest figurative art found anywhere on the planet. | Credit: Stuart Trowell/True to Nature Ltd.
Steve Backshall sits to take a break from walking through a dense forest.
The jungle is one of the toughest environments on the planet in which to operate. Steve takes a short break while hacking trails through the forest in search of ancient rock art hidden in unexplored cave systems. | Credit: Stuart Trowell/True to Nature Ltd.
Steve Backshall and Dr. Pindi Setiawan standing in a cave observing rock art.
Steve and one of the world's leading rock art specialists Dr. Pindi Setiawan examine newly discovered rock art. This remote cave is home to unique art that will ensure the protection of this area for generations to come. | Credit: Stuart Trowell/True to Nature Ltd.