Rob Hewitt's story of survival is one that is hard to beat.
The former navy diver spent 75 hours in the open sea after a diving trip went terribly wrong.
But unlike most people who find themselves in that situation - Hewitt lived to tell his own tale.
And more than 13 years later he's still living most of his life around the water and using his story to save others from falling foul of the mighty ocean.
Hewitt is now on the board of Water Safety New Zealand and is ambassador for Swim safer week which advocates for more children to access swim lessons.
Rob was Simon Barnett and James Daniels' guest for this weeks Six and a Song.
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