
Endurance swimmer Lewis Pugh is known for taking on daunting challenges, from Mount Everest's icy waters to the vast Arctic.
But he's also adhered to an unspoken rule throughout his career: avoid talk of sharks.

Endurance swimmer Lewis Pugh is known for taking on daunting challenges, from Mount Everest's icy waters to the vast Arctic.
But he's also adhered to an unspoken rule throughout his career: avoid talk of sharks.