Terry is right ,there is a fee for American citizens to enter Chile.
USA citizens traveling on tourism or on business trips are allowed to enter Chile without a visa for a period of 90 days renewable in Chile. At the immigration booth a US$ 100.00 fee has to be paid in cash. This fee is based on the principle of reciprocity. The previous-mentioned fee is paid only once and it is valid until the expiration of the passport.
Post Edited (11-25-03 16:39)