Patagonia: Perito Moreno Glacier
A good hour bus ride outside of El Calafate (not to be confused with El Chalten) sits this rarity of a glacier, one of the extremely few glaciers in the world that is still advancing and currently large enough to hold the city of Buenos Aires. Walkways are built to bring visitors within 800 meters, close enough to appreciate its enormity. Every few years, the glacier will even touch land and form an ice dam when it meets up with Peninsula Magellanes. When that dam eventually collapses, it is simply spectacular. The real draw here though is the regularity of iceberg calving from the glacier face. When we visited, we saw at least eight substantial icebergs plummet into the water. Perhaps less dramatic but more amusing is the synchronized turning of heads each time the glacier creaks and groans like an old man.