If you look closely, you'll see a person standing at the foot of the dune, just before the mounds of ice. That's Mike! He ran down the dune ahead of me to the beach. Standing safely on the sand, he's just a few feet from where Lake Michigan begins, and he knows not to go any further. He really gives the shelf ice some scale.
I'm about 70 feet up the dune, and I can hardly see him. Compare him to the ice mounds behind him, and you begin to realize just how vast the ice field is.