By Shannon Lane @Shannonroselane
Scroll down for the full story
Over the breathtaking view of Mont Blanc, Winter Festislack is an event held by ski resort, Les Arcs, in the French Alps.
Every March through to April, hundreds of highliners gather to test their balance and composure as they walk across slacklines dozens of feet high.
French photographer Fred Marie captured this year’s Festislack, and has been doing so for many years.
He said: "I started shooting slackline five years ago in France with a pyrenaline team. It's a fascinating sport, where you can meet very interesting people.
"It's also an excuse to be on a mountain environment and take pictures on a cliff."
Despite a fall from the slackline appearing life threatening, most tightrope-walkers wear harnesses to ensure they are not injured.
But, incredibly, some choose not to.
The photographer said: “Some people walk on the highline without safety, it's call 'free solo' and it's very dangerous!”
Fred Marie is familiar with photographing extreme sports, and aims to convey the stories of the people in his pictures.
He said: "With my work, I try to tell the story of interesting people, not only to show action pictures or spectacular scenes.”