I´ve been in Lake Titicaca and I had the oportunity to enjoy the floating islands of the Uros people. This experiences was amazing because I had the oportunity to learn how to work in this places and understand more about their traditions. So if you have the oportunity to visit Lake Titicaca you should enjoy floating islands. Also, there are a lot of places to know and if you want you can do it with a travel agency. For me was perfect Turperu that helped me in everything from hotels, restaurants and tours.
http://www.southamericavoyage.net/lake-titicaca-in-peru.html

If Lake Titicaca were edible, it would be a full-course meal that could only be described as full-flavored, delicious, and satiating. At times, I still yearn for a taste of Lake Titicaca. This blue water lake is immense in size and beauty, separating Peru and Bolivia, it is said that the lake is a sacred place for the Incas. I think it is a sacred place for us all. Good Journeys!

World highest lake and were the Bolivina navy is bassed. At around 4400m above sea level it will take your breath away in more ways then one. The best thing is the locals still live and dress the same way they have for years.

Travel around the Lake Titicaca is one of the most increible thing, you must to think that you are at 3800 meters of altittude.

Take atrip to the islands and stay in a family! great experience without electricity!