Climbing in footholds on mountain slope without tether 🤯 Would you do this? 😳 https://t.co/sPSfplGIyJ https://video.twimg.com/ext_tw_video/1843734517648928768/pu/vid/avc1/352x640/PiW5j7iuX0yzNv5p.mp4?tag=12