Uros island handicrafts

We arrived on the island and were greeted by the people who live there. About 30 people. Each island has its own president nominated on a rotating basis. The islands together have a president who is elected. The president of Uros island met us at the boat and told us all about the island and their way of life.
Apparently they hop in a boat and drive 1km before toileting which I found hard to believe.
Also one of my friends claim that the lake water is so polluted from mining that you shouldn't even eat the fish from it! Too late now!