The Perito Moreno Glacier is one of Argentina's most famous and impressive natural wonders, and standing in front of its 70-meter-high blue facade and watching the 100-ton ice blocks crumble and crash into the waters below is surely surprising. Perito Moreno is the most vibrant glacier in the Santa Cruz region of Patagonia, constantly moving on Lake Argentino at a rate of about two metres, and whether you spot it on foot or on a small boat, the scenery is truly unique as the appearance of the river changes a little every day.