They meet challenges that include solo expeditions and fire-making without matches.

Danger is supposed to be part of the attraction of hiking - otherwise why hang off a cliff face or chance breaking a knee in a solo expedition far from the roadhead?

Mr. Rapp laughed and went off to buy cat food, his first solo expedition of the night.

Nina had given up her solo expedition forty yards from Skink's campsite, and that's where Winder found her, leaning against the slick red trunk of a gumbo-limbo.

In the mid-1980s, Nugent mounted solo expeditions in search of the Pink-headed Duck on the Brahmaputra River and Mokele-mbembe in the Congo.

'He is now officially licensed for solo expeditions.'

Sorry, this is going to be a solo expedition.

In the summer of 1991, Matuszak made a solo prospecting expedition to the Brooks Range in Alaska.

In the September 1978 edition, he documented the late Japanese explorer Naomi Uemera's solo expedition by dog sled to the North Pole.

In 1984, he successfully completed a solo expedition to the Magnetic North Pole without dogs, snow mobiles or air supplies.