Introduction to Lake Nahuel Huapi National Park: Lake Nahuel Huapi National Park is Argentina’s first national park, a famous nature reserve and tourist area. Catedral Mountain in the park is a famous ski center in Argentina. From June to September every year, it is covered with white snow and silver, making it a natural ski resort. A large number of European and American ski enthusiasts flock here. For the convenience of ski enthusiasts, there are complete hotel and restaurant facilities here, as well as an aerial cable car to take tourists directly to the top of the mountain.