Here we are in the middle of the Southern Alps, surrounded by snowcapped peaks and mossy forests, sitting beside a turbulent river

Derek Cheng makes a half-hearted attempt at the TrustPower Adventure Quest.

In winter in the remote Arctic village of Puvirnituq, Northern Quebec, temperatures range from -2C to -30C.

There will always be a few, like the explorers of old, who want to push to the limit of human endurance.