Río Colorado

             Río Colorado (Colorado River)is a river in the south of Argentina. The Colorado River marks most of the political boundary between the Argentine provinces of Neuquén and Mendoza, and between Rio Negro and La Pampa. Its man-made dam, 'Embalse Casa de Piedra,' serves both to generate hydroelectricity for the arid region the river traverses, and to regulate the river's water level. 
             Rio Colorado measures 1.114 km. Its sources are on the eastern slopes of the Andes in the same latitude as the Chilean volcano Tinguiririca. The river has usually been described as formed by the confluence of the Grande and the Barrancas. It's main tributary is Río Desaguadero.

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Uruguay river

                Uruguay river (Río Uruguay, Rio Uruguai) is a river in South America. It flows from north to south and makes boundary with Brazil, Argentina, and Uruguay, separating some of the Argentine provinces of the Mesopotamia from the other two countries. It passes between the states of Santa Catarina and Rio Grande do Sul in Brazil; forms the eastern border of the provinces of Misiones, Corrientes, and Entre Ríos in Argentina; and makes up the western borders of the departments of Artigas, Salto, Paysandú, Río Negro, Soriano, and Colonia in Uruguay. 
                Uruguay river measures about 1,600 kilometres (990 mi) in length and starts in the Serra do Mar in Brazil. The main tributaries are: Rio Peperi-Guaçu, Rio Quaraí, Rio Negro, Rio Ijuí, Rio da Várzea, Rio Chapecó, Rio Passo Fundo, Rio Ibicuí.

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Ojos del Salado

              Nevado Ojos del Salado is a massive stratovolcano in the Andes on the Argentina-Chile border and the highest volcano in the world at 6,893 metres (22,615 ft). It is also the second highest mountain in the Western Hemisphere and Southern Hemisphere and the highest in Chile. It is located about 600 kilometres (370 mi) north of Aconcagua, the highest mountain in the Western Hemisphere. 
             Due to its location near the Atacama desert, the mountain has very dry conditions with snow usually only remaining on the peak during winter. Despite the generally dry conditions, there is a permanent crater lake about 100 metres (300 ft) in diameter at an elevation of 6,390 m (20,960 ft) on the eastern side of Ojos del Salado. This is most likely the highest lake of any kind in the world.

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Lake General Carrera / Buenos Aires

              The Lake General Carrera (Lago General Carrera) (Chilean side) or Lake Buenos Aires (Lago Buenos Aires) (Argentine side) is a lake located in Patagonia and shared by Argentina and Chile. Both names are internationally accepted. The lake has a surface of 1,850 km² of which 970 km² are in the Chilean Aysén del General Carlos Ibáñez del Campo Region, and 880 km² in the Argentine Santa Cruz Province, making it the biggest lake in Chile, and the fourth largest in Argentina. In its western basin, Lake Gen. Carrera has 586 m maximum depth. 
               The lake is of glacial origin and is surrounded by the Andes mountain range. lake drains to the Pacific Ocean on the west through the Baker River. On his shores are the following settlements: Chile Chico, Puerto Ingeniero Ibáñez, Puerto Guadal, Los Antiguos.

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Argentino Lake

            Argentino Lake (Lago Argentino) is a lake in the Patagonian province of Santa Cruz, Argentina. It is the biggest freshwater lake in Argentina, with a surface area of 1,466 km2 (566 sq mi) (maximum width: 20 mi (32 km). It has an average depth of 150 m (492 ft), and a maximum depth of 500 m (1,640 ft). The glaciers, the nearby town of El Calafate and the lake itself are important tourist destinations.
             The lake lies within the Los Glaciares National Park, in a landscape with numerous glaciers and is fed by the glacial meltwater of several rivers, the water from Lake Viedma brought by the La Leona River, and many mountain streams. Its drainage basin amounts to more than 17,000 km² (6,564 sq mi). Waters from Lake Argentino flow into the Atlantic Ocean through the Santa Cruz River.

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Mar del Plata

           Mar del Plata is an Argentine city located on the coast of the Atlantic Ocean, 400 km (249 mi) south of Buenos Aires. Mar del Plata is the second largest city of Buenos Aires Province (Provincia de Buenos Aires). With a population of 614,350 as per the 2010 census, it is the 7th largest city in Argentina.
          The main landmarks are Cathedral St Peter and Cecilia, Faro Punta Mogotes,  Juan Carlos Castagnino Municipal art Museum, Playa, Museum of the Port of Mar del Plata, Museum of Natural Science, Museum of the Sea (El Museo del Mar), Villa Victoria, Villa Normandy.

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