Option number one: Take a tourist boat since Copacabana, a picturesque town that is located on the banks of the lake.
Option number two: Walk from Copacabana to Yampupata, and from there cross a small strait to reach the Isla del Sol paddling.
It is about 5 hours of fantastic walk during which you will cross more than one village. In some of them you will find people who do not even speak Spanish, but only communicate in Aymara, ancient Andean language.
Peasants, children and endless domestic animals They will enliven this long walk.