Maybe you saw photographer Thomas Senf’s work with a bunch of crazy ice climbers in the Frost Giants, Norway. I never saw the video showing the true extend of their insanity. Just watching them jumping upside down onto ice curtains that can break makes my heartbeat rise.
https://gizmodo.com/climbing-frozen-waterfalls-at-night-by-the-light-of-a-d-1459406383
