Which lake is commonly described as the world’s highest navigable lake?

Lake Titicaca is commonly described as the world’s highest navigable lake.

It sits in the Andes on the border of Peru and Bolivia at about 3,812 metres above sea level. The lake is large enough for substantial vessels, including ferries and cargo boats, although its high altitude affects engine performance and human activity.

The phrase “highest navigable lake” usually refers to large commercial or ocean-going vessels. Small mountain lakes elsewhere may sit at greater elevations, but they are not comparable in size or navigation. Lake Titicaca is also famous for its cultural importance to Andean peoples, including the Uros, who traditionally built floating islands from totora reeds.

The lake covers roughly 8,372 square kilometres and has a maximum depth of about 281 metres. Its principal outlet is the Desaguadero River, which flows south toward Lake Poopó.