Borneo: Dark Shadow
S1, E5: In the world’s first exploration of an undiscovered sinkhole (only recently spotted on a satellite image), follow Steve Backshall into a Bornean cave system accessed by dropping into the sinkhole.
S1, E5: In the world’s first exploration of an undiscovered sinkhole (only recently spotted on a satellite image), follow Steve Backshall into a Bornean cave system accessed by dropping into the sinkhole.