Lake Titicaca's a lake located on the border of Bolivia and Peru. It sits 3,812 m (12,500 ft) above sea level making it one of the highest commercially navigable lakes in the world. By volume of water it's also the largest lake in South America. Overview The lake's located at the northern end of the endorheic Altiplano basin high in the Andes on the border of Peru and Bolivia. The western part of the lake lies within the Puno Region of Peru, and the eastern side's located in the Bolivian La P… (More on Titicaca)