Picture of the day on January 1, 2017: Sunrise in the Lake Titicaca, near Puno, in the Peruvian Andes, not far from Bolivia. The lake is, by volume of water, the largest in South America and, with a surface elevation of 3,812 metres (12,507 ft), it's considered the highest navigable lake in the world. The lake has a max. length of 190 kilometres (120 mi) and width of 80 kilometres (50 mi) and a surface of 8,372 square kilometres (3,232 sq mi), whereas the water volume is 893 cubic kilometres (214 cu mi) with a max. depth of 281 metres (922 ft) and an average depth of 107 metres (351 ft).