San Martin de los Andes is one of the most beautiful cities in Argentina. Like its neighbour Bariloche, San Martin is located on a lake; it is a very important ski resort and an excellent camping, trekking and rafting area in summer. It has 20 thousand inhabitants and offers great options as regards accommodation, including hotels, hostels, bungalows, and also teahouses, restaurants and camping sites. The Road of the Seven Lakes starts in San Martin de los Andes. This is an excursion which can take from one to 1,500 days, in a landscape plentiful with pine trees, streams, lakes, and the silence of the Argentinean Patagonia. As the city is inside the Lanin National Park, there are certain rules to follow in terms of transfers, the use of resources and the treatment of nature. The most important one is not to set fires in places where this is not allowed, due to the frequent forest fires in summer, extremely difficult to extinguish.