Cuesta del Viento is a large alpine lake located in the Andes foothills of San Juan Province, Argentina. The spot features a western rocky shoreline with visible mineral deposits and thermal activity, transitioning to a gradually sloping beach on the eastern and southern shores. The turquoise coloration indicates high mineral content typical of geothermal lakes. With minimal wind reliability (1.5%) and average winds of 6.1 knots, this spot operates as a light-wind destination suited primarily for beginners and intermediates. Side-shore conditions are best with northerly winds. The lake's enclosed nature provides protection from strong swells but limits wave development. Water temperatures average 17°C, requiring thermal protection for extended sessions. Shallow areas near shore and submerged rocks pose navigation hazards. This spot is best suited for light-wind practitioners and those seeking calm water practice rather than wave riding. Sessions are typically limited by seasonal wind patterns and thermal lake conditions.