At some points during the hike, we would walk by huge pitfalls in the snow, which Jón walked us around, and I would imagine for a second if we fell into one hidden beneath the snow. SCARY! He would also change our route if he felt the snow ahead might be hiding dangers. Nothing dangerous actually happened, but it was a strong reminder that we were on a GLACIER and WHO KNOWS WHAT could happen. But somehow, that didn’t really make me too scared, or impede my enjoyment of the hike. Whew!