Titicacaor Titiqaqa is a lake in the Andes on the border of Peru and Bolivia. By volume of water, it is the largest lake in South America. Lake Maracaibo has a larger surface area, though some consider it to be a large brackish bay due to its direct connection with the sea.
It is often called the highest navigable lake in the world, with a surface elevation of 3,812 metres . Although this refers to navigation by large boats, it is generally considered to mean commercial craft. For many years the largest vessel afloat on the lake was the 2,200-ton, 79-metre SS Ollanta. Today the largest vessel is probably the similarly sized, but broader, train barge/float Manco Capac, operated by PeruRail. At least two dozen bodies of water around the world are at higher elevations, but all are much smaller and shallower.