How close can you get to a Nile crocodile? A crew of divers finally makes contact with the perfect croc specimen in this nature video – and they also discover a weakness in the reptile’s seemingly perfect anatomy.

Crocodile Quest (HD)

Croc swims into underwater 'tree'

In this series of nature videos, one daring team of divers is embarking on the adventure of a lifetime. They’re entering the treacherous waters of Botswana’s Okavango Delta to explore an underwater realm that’s never been seen by humans: the home of the Nile crocodile. Diving in croc territory is all about the thrill of discovery – but it’s also fraught with dangers.

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Crocodile Quest (HD)