Lago Traful is a stunning high-altitude lake nestled in the Los Lagos Department of Neuquén Province, Argentina, entirely within the boundaries of Nahuel Huapi National Park. Covering 71.5 km² with a maximum length of 23.5 km and a width of up to 3.52 km, this is one of Patagonia's most celebrated fishing destinations. The lake sits amid a dramatic landscape of wind-and-water sculpted rock formations, white-capped Andean peaks, and lush native forests. Its waters are exceptionally transparent and well-oxygenated, offering remarkable clarity that makes it both a visual spectacle and a technical fishing challenge. The lake drains southward via the Traful River, which flows approximately 25 km before emptying into the Limay River and ultimately reaching the Atlantic. The mountain town of Villa Traful sits on the lake's shore and serves as the primary base for visiting anglers.