The indigenous people of Lake Titicaca were very creative. Using only the reed common to the bay near Puno, they have constructed their homes and boats. They also use it for sustenance. Most impressively, they also created islands using the reeds. They make these islands by tying large clumps of the root of the reed together, and then piling the reed on top. The island that we visited was in an area of the lake that was 50 feet deep.