The students race through six locations with three roadblocks. Each of the locations and roadblocks include information and activities related to Peru. There are games, challenges, activities, events, etc. that pertain to Peru. The final clue is a puzzle that the students need to solve in order to find out the location of the 4th season of the Amazing Race which I made Tunisia.
I also found a bunch of items from Peru (garage sales, Kijiji, etc) and have the students look through the box of stuff when they are waiting for other groups to complete their challenge. If you are not able to do this, you could include a few art activities to complete from Peru if they need to wait. The wait is never very long though