Uros is a group of 42 floating islets located in Lake Titicaca off Puno, Peru. The Uros people originally created these artificial islands to escape the Incas, who dominated the mainland at the time.
Around 3,000 descendants of the Uro are alive today, but only a few hundred still live on and maintain the islands. Most of the Uro descendants have moved to the mainland.
The islets are made of totora reeds, which grow in the lake. The dense roots that the plants develop support the islands. They are anchored with ropes attached to sticks driven into the bottom of the lake. The reeds at the bottoms of the islands rot away fairly quickly, so new reeds are added to the top to compensate. The islands last about 30 years.
The larger islands house about 10 families, while smaller ones, only about 30 meters wide, house only two or three.
Local residents fish, hunt birds, and graze their cattle on the islets. They also run crafts stalls aimed at the numerous tourists who land on the islands each year.
Journeys trips that include Uros:
Lake Titicaca trip extension
Information based on http://en.wikipedia.org/wiki/Uros