On a deserted highway in Vrgorac, Croatia, Faith Dickey walks a slackline between two speeding trucks as they barrel toward a tunnel. Slacklining is an increasingly popular extreme sport developed by climbers in Yosemite Valley, California, in the 1970s and 1980s. It is similar to tightrope walking, but instead of walking on a taut steel cable slackliners make their way across a piece of nylon webbing anchored between two points. Although this high production video was filmed by Volvo to show off the company's new FH model truck, Dickey's abilities (as well as those of the truck drivers) are not any less impressive.

"The stunt itself had to have been the most difficult line I have ever walked," writes Dickey on her website. "It took numerous rehearsals and numerous attempts, the ratio of walks to falls was quite distanced. Unlike a slackline, where you cause the movement, the line between trucks was moving due to bumps in the road and of course any sway in the trailers where the line was attached."

Filed under: Climbing, Europe, Croatia, Video