Opportunities to climb up waterfalls are rare, especially when we're talking about the Niagara Falls. Twice this winter season, extremely cold temperatures have caused entire sections of the water to freeze from top to bottom, creating a scalable wall of ice for some brave, half-crazy climbers. A new pair of videos from Red Bull show these efforts from two different perspectives, showing us just what an effort it takes to calm your nerves and scale this beautiful ice formation.

And here's another view of the climbing effort to scale the frozen section -- with the free-flowing part of the Falls roaring in the background.

More: Daredevil's Crazy POV Climb Goes Viral

Story continues below