Assuming you're doing the se workout in both places, does cardio training at high altitudes burn more calories than at low altitudes? Megan Miller Santa Fe, NM

Over in Germany, water sliding is serious sport. Hiking up their Speedos, athletes of all shapes have learned how to top 50 miles per hour with only the occasional bloody nose and forehead stitches. This I had to try.

Karhu’s Strong Fulcrum Ride ($140) seems different out of the box than other road running shoes. Perhaps, it’s the styling with its nod to fashionable casual footwear. The stark white shoe has but a few touches of silver to detract from a large, gently stylized letter “M” that also…

You've helped me choose backpacking and mountaineering gear in the past and I'm counting on you again. I'm set to shop for a kayak this spring, and want some advice. My plans call for mostly day trips with some two- to three-night trips on mostly flat rivers, never more than class II/class II+ whitewater. I want a comfortable boat that tracks well, is maneuverable for those class II stretches, and that can hold me (six feet, 210 pounds) and my gear for those three-day trips. I'm thinking a boat in the 12-foot range. I'm hooked on Wilderness Systems Phase 3 seating, but open to suggestions Mike Baltimore, Maryland

For hyper-aware types who scan bushes with an infrared camera for bad guys—and for those who just want to boost energy efficiency.

What are Cleveland’s riot police doing in mountain bike gear?

Seven products in your shed that are going extinct.

A journey to the cradle of climbing reveals a strange new alpine environment, where glaciers are melting, mountains are falling, and nothing is as it was

This exclusive clip from the new documentary 'Rise of the Sufferfests,' from filmmaker and author Scott Keneally, examines the idea that our modern working environments often leave us wanting more.

Puff DaddyWe were impressed by how well the Mission’s pit zips regulated temperature on a mild midwinter trip to British Columbia, but there was plenty of stuffing (500-fill down) for the most frigid test days, too. So if single-digit readings are commonplace at your home resort, check out this bunker.