These are the terrifying moments a climber never wants to happen. Losing your grip and plummeting 100ft down the side of a Welsh mountain. He walked away, kind of.Mark Roberts was scaling a gully last month when a block of ice fell from above him. The footage, captured by his helmet camera  shows him putting up his arm before his fall begins.

He hits rocks and flips over as he tumbles from his spot and loses his axes. Roberts was rescued by the Llanberis Mountain Rescue Team within half an hour of his fall on February 24 and came away with a twisted ankle and bruises after being airlifted by an RAF search and rescue team.

Watch the fall below.