A hiker treks down an icy slope outside an ice cave on the Athabasca Glacier inside Jasper National Park in Alberta, Canada.
While some adventurers are deterred by freezing temperatures, others take advantage of the glorious opportunities winter provides. They swim through broken ice, get up close and personal with cold-weather wildlife, snowboard down snowy peaks, and explore glistening ice caves. By trekking into frigid landscapes, these intrepid athletes get the chance to explore pristine environments—and avoid the crowds while they do it.
- Nat Geo Expeditions