i will be moving to lima end of july to begin immersion program at "el sol". it is my understanding it is up to the immegration officer at airport how long he wants to grant me under a "tourist visa" (up to 183 days?). i plan to stay at least a year in south america...either exit and reenter peru or move on to another school eg in colombia. my question: do i need a "round trip" ticket when entering peru or can i just purchase a "one way" ticket? many thanks, george