When it comes time to descend, there are two ways down: walk back down along the crest you climbed up or sand-ski down the slope.

CNN: Romancing the dune in Namibia

Intrawest owns just one Colorado resort, a formerly down-at-the-hills ski area called Copper Mountain that drew just under 1 million visitors last year.

FORBES: Slippery Slope

Petitt flew into Denver and had a look at the site, a run-down ski resort then called Squaw Pass that hadn't operated since 1974.

FORBES: Ski Mogul

"Fishing rods are just upside-down ski poles, " he reasoned.

FORBES: Ski, Fish And Pitch

Plus the man who was once caught in an avalanche and now studies the maths of how they move by rolling ping-pong balls down a ski slope.

BBC: Quantifying economic success

We're out of the helicopter, staring down the Big One, a 4, 500-foot run down a massive glacier by far the longest ski path I've ever seen.

WSJ: Heli-Skiing in Greenland

His fashion styles -- wearing a watch over the cuff of his shirts and button-down collars never buttoned -- became trends and the paparazzi would trail him from the French Riviera to Swiss ski resorts.

CNN: Agnelli: The playboy industrialist

Two control lines, generally 60 to 90 feet long, lead from the sides of the kite down to a padded bar about twice the length of a water-ski towrope handle.

FORBES: Hook In and Hold On