Lake Titicaca, which borders both Bolivia and Peru, is one of the largest freshwater lakes in South America.
The video is brought to us by the European Space Agency (ESA).
Covering an area of around 8300 sq km, Lake Titicaca lies on the high Andes plateau and straddles the border between Peru (to the west) and Bolivia (to the east). It is considered the highest major body of navigable water in the world, as it sits at an elevation of 3800 m above sea level.
More information is available from the ESA.