One of Argentina's most visited national parks, Nahuel Huapi occupies 750,000 hectares (1,853,290 acres) in the mountainous southwestern Neuquén and western Río Negro provinces. The park's centerpiece is Lago Nahuel Huapi, a glacial remnant over 100km (62mi) long that covers more than 500 sq km (193 sq mi). The lake is the source of the Río Limay, a major tributary of the Río Negro. The park office is in Bariloche.
Rafting and kayaking on the Río Limay has become increasingly popular in recent years. The best time to be on the rivers is November through February, though you can raft October through Easter.
