Perito Moreno Glacier is in Los Glaciares National Park, situated in the southwest of Argentina's Santa Cruz Province, and has been designated a UNESCO World Heritage Site since 1981. This park is renowned for its natural wonder, the Perito Moreno Glacier, which is among the most captivating attractions in Argentine Patagonia. As one of the 48 glaciers within the Southern Ice Field of Patagonia, the Perito Moreno Glacier ranks among the largest. The sheer size of the Perito Moreno Glacier is awe-inspiring. This glacier spans 3 miles in width and is approximately 700 meters deep at its deepest point, covering an area of 100 square miles. It ranks as the third-largest freshwater source globally, after the Antarctic and Greenland ice sheets. The glacier has been forming for around 18,000 years, with its growth defying the global trend of glacier retreat associated with climate change.