1. Nahuel Huapi National Park is a vast protected area located in the Patagonian region of Argentina, near the city of Bariloche. It covers an area of 7,050 square kilometers (2,720 square miles) and was established in 1934, making it the oldest national park in Argentina.

The park is named after Lake Nahuel Huapi, which is one of the largest and deepest lakes in the region. The park encompasses both the lake and the surrounding mountains, including several dramatic peaks such as Mount Tronador, Mount Catedral, and Mount Lopez.

Nahuel Huapi National Park is known for its stunning natural beauty, with snow-capped mountains, pristine lakes, and dense forests. It is home to a wide range of wildlife, including deer, foxes, pumas, and a variety of bird species. The park also has several hiking trails and camping sites, making it a popular destination for outdoor enthusiasts.

2. The park is open all year round, and there is no entrance fee. However, certain activities and attractions within the park may have their own fees. The park’s administrative office can be contacted at +54 294 442-9191 for more information.

3. To reach Nahuel Huapi National Park from Bariloche, you can take a bus or drive. The park is about 18 kilometers (11 miles) from the city center. Buses run regularly to various points within the park, and there are also organized tours available. If you prefer to drive, there are several parking areas available within the park.