From glacial silt.
Fredlyfish4 — CC BY-SA 4.0 · Juan Camilo Trujillo from Medellin, Colombia — CC BY 2.0 · Murray Foubister — CC BY-SA 2.0 · Tibby Jones — CC BY 2.0
Lake Argentino is Argentina's largest freshwater lake, 1,415 square kilometres in area and 719 metres deep at its deepest point, with the town of El Calafate on its southern shore. Its water is a milky turquoise from the fine silt carried by glaciers, and arms of ice run down into it, Perito Moreno in its southern arm and the Upsala glacier in its northern arm. The finest way to see it is on the long boat trips from Puerto Punta Bandera, cutting through the northern arm between the Andes and drifting icebergs to the faces of the Upsala and Spegazzini glaciers, places no road reaches. On the lakeshore in El Calafate, the Laguna Nimez reserve is home to flamingos and lake birds. The wind on the lake is strong and cold, so bring a warm jacket even in summer.
From glacial silt.
In the northern arm.
Birds and flamingos.
On the El Calafate shore, Los Glaciares National Park
On a long boat trip across Lake Argentino from Puerto Punta Bandera near El Calafate, as no road reaches them.