Why Nick Vieira risks it all for the world's most dangerous sport
Evan Rosser
Canadian caver Nick Vieira spends most of his days underground, putting his life on the line to explore parts of the world no other person has ever seen.

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Why Nick Vieira risks it all for the world's most dangerous sport
Evan Rosser
Canadian caver Nick Vieira spends most of his days underground, putting his life on the line to explore parts of the world no other person has ever seen.