The document discusses the Floating Islands built by the Uros people in Lake Titicaca out of reeds to isolate themselves from other groups centuries ago. While this protected them from the Incas, it did not protect them as much from modern tourists, as the Floating Islands are now a major tourist attraction on Lake Titicaca.

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21. The Floating Islands/Islas Flotantes are islands built by the Uros people out of the reeds that grow in Lake Titicaca. The Uros started building these islands centuries ago to keep themselves isolated and safe from other groups. It seems to have protected them from the ancient Incabut not so much from the modern Tourist because they're now Titicaca's biggest Must See.

22. C.M.Pérez 9/11/08 http://www.slideshare.net/CMP END