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Dolphins protect extreme swimmer from shark during open water challenge

Dolphins protected an extreme swimmer from Nottinghamshire when a shark circled, during an open water challenge.

Adam Walker is the only Briton ever to successfully complete the world's toughest open water challenge, Oceans Seven.

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Swimmer describes moment dolphins keep shark away

An extreme swimmer from Nottinghamshire has described the 'unbelievable' moment dolphins protected him from a shark.

Adam Walker was swimming in the Cook Strait near New Zealand, as part of a challenge to swim seven of the toughest open water routes in the world.

WATCH: Dolphins protect swimmer from shark

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