We went to Cusco for 3 days (which we will add pics of when we head back to do our inca trek to Machu Picchu oct 20), bused to Puno for the night and made our way to Copacabano, Bolivia for 3 days....and yes we did have that song running through our heads many times a day.  Copacabana is this quaint little town on Lake Titicaca. We had a nice room overlooking the water for a whole 5 bucks a day. We spent a few days relaxing, and getting to know some French and New Zealand tourists, then made our way to Isla del Sol.