so i'm going to south america for one months. we are getting a return flight to lima. my route is lima-huacachina-lima-urubamba-cusco-macchu picchu- cusco- puno-lake titicaca-puno- la paz - uyuni. we have about a week and a half left after that, and not sure what to do. we want to travel just peru and bolivia. any suggestions as to what to do for that time, it would be greatly appreciated!