Puerto Blest is a small port located on Lake Nahuel Huapi, at the end of the Blest Arm, in RÃÂo Negro Province in Argentina, located at the coordinates: 41 ð 01â²27.16 â³ S 71 ð 48â²49.80 â³ W. The port is located where the FrÃÂas river discharges into Lake Nahuel Huapi, within the Nahuel Huapi National Park at 808 meters above sea level, and is part of a tourist path that connects the city of Bariloche with Lake FrÃÂas and the Cántaros waterfall.