Los Uros, ethnic group inhabiting Titicaca Lake,Bolivia

Bolivia-1, originally uploaded by Abhishek's Received Postcards.

Lake Titicaca is a lake located on the border of Peru and Bolivia. 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 is also the largest lake in South America.
Uros are a pre-Incan people that live on forty-two self-fashioned floating man-made islets in Lake Titicaca Puno, Peru and Bolivia. They form three main groups: Uru-Chipayas, Uru-Muratos and the Uru-Iruitos. The latter are still located on the Bolivian side of Lake Titicaca and Desaguadero River.