Hiking on Glaciar Perito Moreno

I wondered about the rules. All had to wear crampons, but some had not the right shoes, only sneakers. Not a problem for the guide. No rope, not really a lot of instructions, but as you can imagine, falling down from this ridge could be enough for a broken neck. Later we came very near to the glaciers front, which was very exciting for photographers, but a bit dangerous. 15 years later in 2015 I made this hike again under much strciter rules, but unfortunately not so good photo opportunities ;-) - scanned slide, Minolta X700