3: Mexico Part 1 | Undiscovered Worlds with Steve Backshall
Steve Backshall leads an elite cave diving team into the largest unexplored cave network on earth. Below a Mexican jungle, they are pushing further than anyone has before.
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1: Arctic Part 1 | Undiscovered Worlds with Steve Backshall
Steve Backshall visits unexplored parts of the world. This time his team is kayaking in the Arctic - they face perilous sea ice and have a terrifying encounter with a polar bear.
2: Arctic Part 2 | Undiscovered Worlds with Steve Backshall
Naturalist and explorer Steve Backshall leads a team on a mission to summit a remote and unclimbed mountain deep in Greenland's Arctic wilderness.