Sun Glint on Rio de la Plata Estuary and Rincón del Bonete Lake, Argentina and Uruguay – December 15th, 201234.8S 57.1W
Sun glint causes the waters of the Rio de la Plata Estuary and the Rincón del Bonete Lake (upper right) to have a silvery color. The estuary is formed by the confluence of the Uruguay and Paraná Rivers, and it is located between Argentina and Uruguay. The Rincón del Bonete Lake is the largest body of fresh water in Uruguay. It is an artificial lake formed by a dam on the course of Río Negro. It was constructed in 1945 and has a surface of about 1,240 square kilometres (480 sq mi).