Bariloche is in the Río Negro Province, near the Nahuel Huapi National Park in Argentina. San Carlos de Bariloche is a city in the province of Río Negro, Argentina, situated on the foothills of the Andes, surrounded by lakes (Nahuel Huapi, Gutiérrez Lake, Moreno Lake and Mascardi Lake) and mountains (Tronador, Cerro Catedral, Cerro López). 

Arguably the most visited city in Argentinian Patagonia, it is famous for skiing and is great for sightseeing, water sports, trekking and climbing. 

Despite being an undeniable tourist magnet, Bariloche is set amidst incredible landscapes which should not be missed by nature-loving travelers. Another claim to fame is its Swiss-like atmosphere and its chocolate boutiques and breweries, and look for the St Bernard dogs on display for tourists.

- Wikivoyage