How many times/ways should I submit the same answer?
My submits....
Day 1--Lake Titicaca, Puno, Peru
Day 2--Lake Titicaca, Peru, Bolivia, South America
Day 3--Lake Titicaca, Peru
Day 4--???? Is this necessary?

(Lake Titicaca, in Peru and Bolivia)
Just Repeating 
Postcard:
Greetings from Peru
Lake Titicaca
Looking forward to the next puzzle.........