Divers of the Prefectura Naval Argentina inspect the Rio Limay covered with ash from Chile's Puyehue-Cordon Caulle volcano chain at the mountain resort of San Carlos de Bariloche in Argentina's Patagonia June 16, 2011. Some towns in Argentina's Patagonia remain blanketed in volcanic ash. Airline activity is getting back to normal after days of chaos caused by a towering ash cloud, but Andean towns are covered in a thick, ashed blanket that is disrupting water and power supplies and raising fears over the key winter ski season that starts next month. [Photo/Agencies]