explorer

"They're built to ensnare sharks or fish and they're deadly effective, but sadly completely indiscriminate," says Dean Cropp who, as a cinematographer and ocean explorer, has been documenting these nets for years.

"We're no different to most explorers in the the world. They always find another peak to climb."

Cortés was an explorer who brought about the end of the Aztec empire and helped pave the way for the Spanish colonisation of the Americas.

The book came from the family library of Hubert Priestley who was a famous botanist in the 1930s and brother to the Antarctic explorer and geologist, Sir Raymond Edward Priestley.

"He loves glaciers and snow, and he loves explorers," she said, adding that as a climate journalist, he is attempting to visit glaciers that are rapidly shrinking due to climate change.