The brochures show palm trees, open-air cafes, and temperatures that make you question why clothing exists. What they leave out is the surazo — a blast of Antarctic air that races thousands of miles through Argentina, bypasses the Andes entirely, and slams into Bolivia's tropical lowlands without warning. Two days ago you were sweating. Tonight you're digging through your luggage wondering why you're freezing in the middle of the tropics.

The 8th Wonder of the World now has a waitlist harder to get on than the most popular club in Miami. Here's why showing up and hoping for the best will ruin your trip, and the ONLY want to make sure you actually get in.