The final stage of our practice was traversing Hotlum Glacier which was pretty broken up with many wide, flat and skinny bridges luring climbers with their seemingly strong and safe appearance.
Navigating slowly and carefully, foot by foot, through the surrounding bridges ending with huge crevasses and still hoping to get to the other side, at one point I spotted a small black hole a couple of inches off my boot which made me realized that I had no more room to safely cross that labyrinth. Yes, I was roped but these huge bridges could easily smash me while collapsing. I picked a different route.
We all had fun and came back intact.